Reading comprehension solution

The main content of this paper is to introduce a new photography trend-underwater artistic photography. Therefore, there are two central elements-photography+underwater. You have to see who has these two elements among the four options and who is the correct option. Smile is the usual expression when people shoot, so it can represent photography, and the other wet can represent underwater. Therefore, only a has two elements, which is the correct option.

You choose D, new challenges, new trends. This range is too big and vague, and it can almost include many new things. So, it can't be right. D is a generic term. The topic of the test is the central content of the test article, and each article has its own specific theme and is targeted. So what is not integrated can't be correct.