I would go with B, or Ways to build immunity to diseases. Why? Well, just by using the word biology, we can use process of elimination. The prefix “bio” means life, so C and D already would be out. The suffix “ology” means the study of, so the word biology means the study of life. Because biology often has to do with diseases and finding cures to sustain human life spans, the only logical answer would be B. A would make no sense in terms of biology.
The effect of the rhetorical language that appears in this poster, "Every minute counts!" emphasizes the idea that viewers should be contributing to the war effort at all times."
In this poster there is a picture of a worker, standing with his right hand in his pocket and smoking a cigarette. There are ships in the background and a clock with a ten minutes section highlighted. This is a poster from World War II, issued in Great Britain. This poster underscores the idea that it's everyone's duty to contribute to the war effort at all times. Every minute is precious.
These disasters
Grim specter
Tragedy
Stark reality
Hope this helps :)
P = the number of photos added is independent.
t = the thickness of the scrapbook is dependent.
hope this helps!!