Cancer
a. is a relatively new disease, first diagnosed during the latter half of the 19th century.
b. is a group of diseases marked by the growth and spread of new cells.
c. is due to a parasite that attacks new cells.
d. is due almost completely to contact with dangerous chemicals.

Aclient with pernicious anemia asks why she must take vitamin b12 injections for the rest of her life. what is the nurse's best response? a. "the reason for your vitamin deficiency is an inability to absorb the vitamin because the stomach is not producing sutficient acid." b. "the reason for your vitamin deficiency is an inability to absorb the vitamin because the stomach is not producing sufficient intrinsic factor." c. "the reason for your vitamin deficiency is an excessive excretion of the vitamin because of kidney dysfunction." d. "the reason for your vitamin deficiency is an increased requirement for the vitamin because of rapid red blood cell production."