Answer:
Letter B) While shopping at the car lots last Saturday, Jake looked at several sports cars.
Step-by-step explanation:
A dangling modifier happens when a word, phrase, or clause describes something or someone, but it is not clear to what or whom they refer. Example: Crying, she gave the baby back to his mother (we don't know for sure who was crying: the baby, the person holding it, or the mother).
Therefore, a dangling modifier creates ambiguity in the sentence, since it can be misinterpreted as referring to something when it should refer to something else. If we change the modifier's position and/or add a few words to the sentence, the ambiguity is eliminated and only one interpretation will be possible.
In the original sentence provided, "shopping at car lots last Saturday" sounds strange. We know it should refer to Jake, since he is the only human being mentioned in the sentence. But due to its position and lack of conjunction, it sounds as if the cars were shopping. The option that better corrects such problem is letter B. It changes the position of the modifier and adds "while", making it clear we're talking about Jake:
While shopping at the car lots last Saturday, Jake looked at several sports cars.