The first statement is incorrect because glucose is a molecule, and a molecule can't contain molecules. It can contain atoms that can make up other molecules, but it can't actually contain other molecules.
The second statement is false because although glucose is made up of three types of atoms, it is not an element.
The third statement is false for the same reason as the second statement, except instead of the word element, it's the word atom.
The fourth statement is correct because of both the process of elimination and also just because it doesn't contain any sort of false information.
