The sentence that places the modifier correctly is "Satoko wished she'd been alive three hundred million years ago...".
This is a word or set of words that describe or modify a noun such as a person or a place.
Modifiers should be placed next to the word they modify and this should create a clear sentence.
The sentence "Satoko wished she'd been alive three hundred million years ago..." is the only correct option because the modifier is next to the word it modifies.
Moreover, in other sentences the modifier is incorrectly place and the meaning is not clear.
Learn more about modifiers in: https://brainly.com/question/1528982