Answer: Option (B) is the correct answer.
Step-by-step explanation:
A class of science in which we study about the matter along with its properties and why there is combination or separation of atoms occur is known as chemistry.
For example, studying about reactivity, conductivity etc of metals comes under the field of chemistry.
Whereas origin of matter is studied in biology.
Therefore, the study of the origin of matter is not within the scope of chemistry.