Mrs. Singh planted bananas because they were very popular.

　　题干大意：Singh夫人种香蕉是因为它们很受欢迎。定位到文中第三段的第三句，“Given the popularity of bananas and their use in a range of food products, she saw great potential.”，由于香蕉的流行和在一系列食品中的应用，她看到了巨大的潜力。题目与原文意思相符，故选A。