Ap computer science question. I know the answer is B, but why though?

I’m giving out free points and brainliest to whoever answers this fast and correct : ) if you want to obtain a class e license before you turn 18, you a. be in compliance with school attendance requirements b. have proof of employment c. be a u.s. citizen d. own a motor vehicle

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

On a time limit! willing to give free 25 points plus brainliest for this drivers ed question if answered correctly : ) systematic searching is a skill that takes to master. a. no time at all b. repetitive practice c. innate talent d. extra gadgets