The correct option is A Banana
A banana is an edible fruit, botanically a berry, produced by several kinds of large herbaceous flowering plants in the genus Musa. The fruit is variable in size, color and firmness, but is usually elongated and curved, with soft flesh rich in starch covered with a rind, which may be green, yellow, red, purple or brown when ripe. 100g of banana provides 89 kcal of energy. Banana is the cheapest and high energy food compared to mango, guava and apple. Thus, option A is correct.