The correct answer is option 1, Apple. False fruit, also known as pseudocarp, is a type of fruit that develops from tissues other than the ovary wall. In the case of an apple, the edible portion that we consume is not derived from the ovary wall, but rather from the receptacle of the flower. This means that the apple is technically not a true fruit, but rather a pseudocarp or false fruit. Guava and mango, on the other hand, are examples of true fruits because they develop from the ovary wall of the flower. Tomato is also a false fruit, and it is often mistaken as a vegetable. However, in this question, option 1, Apple, is the correct choice because it is specifically asking for an example of a false fruit.