JEE Main 2020 Chemistry question

Amongst the following statements, that which was not proposed by Dalton was -

• (A)All the atoms of a given element have identical properties including identical mass. Atoms of different elements differ in mass
• (B)When gases combine or reproduced in a chemical reaction they do so in a simple ratio by volume provided all gases are at the same T & PCorrect
• (C)Matter consists of indivisible atoms
• (D)Chemical reactions involve reorganization of atoms. These are neither created nor destroyed in a chemical reaction.