Answer:
The answer is sentence number one.
Step-by-step explanation:
Every word in a sentence has a meaning. Some of them modify the main word. Misplaced modifier is, as its name suggests, such a word modifying not the word its meant to, but a completely different word. Therefore it is misplaced in a sentence. This changes the meaning of a whole or a part of a sentence.
Having this in mind we see that phrase a gold man's watch from the first sentence has illogical meaning. So looking at this phrase we could interpret it as a watch that belongs to a gold man, which is highly unlikely. Usually a misplaced modifier is corrected by simply changing the order of the words, which means that in this case the phrase should say: man`s gold watch.
Other sentences from the text do not have ambiguous meaning such this.