The correct option is A Only statement 1 is correct.
The flower which has all the four whorls i.e., calyx, corolla, androecium and gynoecium is known as a complete flower.
Whereas, the flower with one or more whorls missing is called as an incomplete flower.
Cucumber and maize have flowers in which reproductive whorls i.e., androecium and gynoecium are present on separate flowers. Hence, they are considered as incomplete flowers.