<span>The option which is the least important to consider before choosing a fitness activity is B. the popularity of the activity. It doesn't really matter whether an activity is popular and if a lot of people are doing it, you should do whatever you want to do. So, your personal interest, the cost, and time commitment are things you need to consider before opting for an activity, and you don't have to think about its popularity really.</span>
C. The word originated from greek philosophers during the study of 1667
Most tactics they use are ethos showing that a famous person consumes tobacco and you should consume it too. Many movies show most of their protagonists smoking tobacco to show people that they look cool. They use a lot of commercials to show how tobaccos is very addicting and you should try it too. Advertisers try to convey the audience, it's technically psudoscience. Since they don't have evidence to prove that tobbacco is good for you and healthy, but if they did it would probably disturb the consumers.
So its acquired immunity and the cells responsible are the B lymphocytes that produces antibodies against the virus. Memory is keep since first encounter of the virus by the immune system by way of the antibodies that was initially produced. The antibodies are there already, which makes it fast to act upon when expose again.
Im sure its b no im positive its b