The most likely correct answer to me would be D
Using mobile phones has lots of advantages and disadvantages and most you will be aware of that. Earlier days, when we are out of home or office, we need to search for a public telephone booth to make a phone call, but now, just pick up your mobile phone and dial. I am trying to list the Pros and cons of using a mobile phone in this post. Advantages of using a mobile phone You are always connected, anybody who knows your mobile number can contact you. If you are travelling out of your territory...
The answer would be sentence structure. This is because chronology is when you organize a piece of writing in the order of how things happen, order of importance is when you organize a piece of writing in order of importance. And comparison and contrast is when you organize your paper by comparing and contrasting atleast 2 different things.
From what I can understand, this question is asking for what would describe the phrase "how many". In that case, the answers would be C and D, as they're both describing how many of whatever there is.
"There are four cats in that box."
Good Luck!