Which of the following is a good method to use when choosing a research topic?

a.
document sources

b.
write a thesis statement

c.
narrow your topic

d.
create a web diagram

A good method to use when choosing a research topic is:

c. Narrow your topic.

Explanation:

Probably the research topic is not the problem for selecting, in change, maybe the theme selected could be very extensive, for that reason, the best form is narrow the topic, it can be using the  method "for what", you can ask yourself so many times "for what" until you don't encounter another reason, at that moment, you'll know that the topic is the correct.

Obtaining information from document sources or thesis statements can introduce you to a topic that you don't enjoy, the reason why the investigation won't be successful at 100%.  

invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.

the illustration   that would give a reader a clear understanding of the text is a picture of men constructing the frame of a building.the frame is made of iron bars. the text describes the job of blacksmiths'. these were very organised and they had different names: "the driver" and "the heater". the text describes the way in which these men worked ; they worked iron pieces as if they were playing a sport. in fact, the text wants to show the men's skills. the text also puts some emphasis on the use of '' rivets'' in construction. this kind of nails were not always used in the construction of manhattan.

some examples:

"and with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can." men's skills

"when the driver was ready for a new " the emphasis on the rivet ( special nail used in construction).

" it against a beam to remove any cinders, and jammed it into the waiting hole. " the emphasis on the rivet.