Step 1: Read the questions + all the alternatives(A, B, C, D)
Step 2: Look for the information in the text and underline the sentence which shows the right answer (according to you).
Step 3: Read the question and alternatives again and compare them with the text.
Step 4: Cross out the incorrect answers
Step 5: You probably have two answers left. Compare them again with the underlined text and choose the right one.
Step 6: You should be able to say: I chose this answer because in the text …..