Choose the correctly written sentence. while i was climbing up to the roof, the ladder slipped and made me fall. while climbing to the roof, the ladder slipped and made me fall. all of the above none of the above

"While I was climbing up to the roof, the ladder slipped and made me fall." was the correct answer.

The answer to your question would be that the sentence that is written correctly is the following one: While I was climbing up to the roof, the ladder slipped and made me fall.

Explanation:

The second sentence contains a dangling modifier.  A dangling modifier occurs when the subject being modified or described by the modifier does not appear in the sentence. As the modifier has no subject, it is considered to be "dangling". In order to fix this mistake, you can modify the sentence to include a subject and make sure that the modifier goes directly next to the subject it modifies. With the dangling modifier, it seems that the one climbing the roof and slipping is the ladder and this is impossible.

the correct answer would be:  

a. adverb phrase