How does hiv harm the body?
a. it deceives the body into attacking itself.
b. it destroys immune cells, leaving the body defenseless.
c. it causes vital organs to stop functioning because of a high level of toxins in the blood.
d. all of the above

When conducting research online, the key word or key phrase you type into a search engine should be a. as general as possible to include all possible results. b. unchanging from search to search so that you get consistent results. c. as clearly defined as possible so in order to narrow your search. d. flexible and applicable to a variety of topics.