I believe the answer to you question is c. complex sentence
The mayor would have to look at material which has been vetted by the scholarly community, regarded to be reliable; the method of publishing and reputation of the source is key, then this can be used and assessed as what meets the specific needs for the town - to do this he would be wise to conduct a study and analysis on the specific requirements for the towns' needs.
First of all, you need to know what a dangling modifier is. It means that there is a modifier which refers to the wrong thing in a sentence. Here, that would be 'digging to the bottom of my suitcase.' As you can see, the way this sentence is written, it would seem that modifier refers to 'my passport' as if it was digging, which is not true.
Therefore, the correct answer which fixes this problem is A. <span>Digging to the bottom of my suitcase, I failed to locate my passport, which was hidden under a pile of dirty clothes </span>
it's C, engaging in a text conversation