The answer might be D or A
The sentence that correctly uses a hyphen in a compound modifier is D, Enrique's dream is to become a full-time singer.
The other words do not need hypens. You can hyphenate two adjectives, like well-behaved, but only before the noun. So, you can say my well-behaved little sister, but not my little sister was well-behaved (it should just be well behaved).
Im going to go with b im not 100% sure tho srry if im wrong <span />
He wanted to naturally express the aspects of how science gets done, and also depict the bad along with the good.