What does this illustration, as a whole, represent?

a) an element

b) a compound

c) a mixture

d) an atom

Answer : The correct option is, (B) a compound  

Explanation :

Mixture : It is defined as the substance that is made by the combination of two or more different components.

Pure substance : It is defined as a substance that is made by the combination of only one type of atom or only one type of molecule.

Compound : It is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.

Element : It is a pure substance which is composed of atoms of similar elements.

In the given image, there are two hydrogen atoms and one oxygen atom. Both combined to give water . That means, is made from atoms of different elements (hydrogen and oxygen) combined together in a fixed ratio by mass.

Hence, the correct option is, (B) a compound