Who is most likely to be exposed to blood-borne diseases? alicia, a server in a restaurant daniel, a kindergarten teacher sofia, a sales manager victor, a cleaner in a medical facility janet, a logistics manager

Rick read the following argument: although the gas helium is the second most abundant element in the known universe, its supplies on earth are limited. most helium comes either from mining minerals or as a byproduct of natural gas. although helium is in low supply, the demand for it is quite high. it can be used for a variety of medical purposes, including the treatment of breathing problems such as asthma. helium also has heart and nerve protective properties, and doctors are beginning to use it in surgery. yet current laws make recycling helium unprofitable. for the sake of our health, those laws must change. which statement would be the most appropriate in a conclusion to this argument? why? a. “these laws are unlikely to change, so we must take steps to manufacture helium on our own.” this statement makes the logical leap that if we can't recycle helium, we should create it. b. “until human disease is a thing of the past, we cannot support laws that put helium supplies at risk.” this restates the claim of this argument, which is that we should do everything in our power to treat human diseases. c. “if there is any practical use for helium other than medicine, laws should change to protect current supplies of the gas.” this sentence summarizes one of the major points of the argument, which is that helium reserves are in low supply. d. “human health depends on helium, and therefore it is necessary to change the laws that make it hard to acquire.” this restates the claim of the argument and also summarizes the supporting evidence that illnesses can be treated by helium.

If a reader is varying her tone and pitch while reading, she is reading with:

Enade, 2005 – adaptada) "a respeito dos estudos comparativos, a resposta de weber foi a elaboraç? o de "tipos ideais", que constituem um dispositivo generalizante, um modelo heurístico, sobre o qual era possível aplicar a comparaç? o. nas suas explicaç? es históricas comparadas, weber rejeita sempre a hipótese de leis ou de monocausalidade; ele pensa, portanto, que um evento pode ter diversas causas e que conjuntos diversos de causas podem ter o mesmo efeito. a validade das comparaç? es em weber provém das suas construç? es empíricas dos processos de induç? o e de introspecç? o mais do que de uma verificaç? o causal de hipóteses. paola rebughini. a comparaç? o qualitativa de objetos complexos e o efeito da reflexividade. in: alberto melluci (org.) por uma sociologia reflexiva: pesquisa qualitativa e cultura. petrópolis: vozes, 2005, p. 242 (com adaptaç? es)." a partir do fragmento de texto, avalie as seguintes afirmaç? es: