“He was, of course, overweight, by 20 or 25 pounds. He thought I was okay, though, because he didn’t smoke.” How do these sentences convey a sense of irony?

a. the image doesn't give relevant information.

explanation:

what does a guy holding a paper have to do with bees and their natural instinct when moving and protecting their hives?

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b. cronkite, a trusted television personality, declared that the war was unwinnable and told the american people that the government had better find a way out

even though it went against everything the news anchors typically stood for, cronkite voiced an opinion and took a stance, telling the us that there was no way they were going to win, the war was going to end in a stalemate. 

the gas pressure p, gas volume v, and gas temperature t are given in the formula:   pv=nrt,

r is the gas constant, and n is the number of gas moles.

if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.

the right answer is a.