(A) There is a Significant drop in the number of people travelling by air during the last quarter. (B) There is a significant drop of the number of people travelling by long distance trains during the last quarter

Directions: Below in each question are given two statements (A) and (B). These statements maybe either independent causes or may be effects of independent causes. One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choice - correctly depicts the relationship between these two statements .