The Law of Definite Proportions States That _______

The law of definite proportions states that _______

A) compounds such as NO and NO₂ have identical chemical properties.
B) compounds such as NO and NO₂ must have masses that are whole-number multiples of each other.
C) nitrogen and oxygen can combine to form a variety of compounds, such as NO or NO₂.
D) the elements forming a given compound always react in the same proportions.
E) only one compound can be produced when two elements combine.