The correct answer to this question is Reading. Analyzation skills are crucial to solving this question. First, the key at the bottom helps us differentiate which bars are representative of the first graders. The key shows that the black bars represent the first graders, and the gray ones represent the fifth graders.
They know that we can find the highest black bar on the graph, which represents most students liked that subject. The highest black bar is the third one on the graph. Under it is the word "Reading," which means reading is the first graders favorite subject. The second favorite is writing, while art and science are tied for third.