(A) A huge explosion rocked the housing complex as a cooking gas cylinder exploded in one of the flats in the complex (B) Residents of the housing complex came running out of their houses and assembled in the open courtyard.

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 .