Read the sentence below and answer the question that follows.

Stress and the chemical environment, two factors, affect the durability of glassware.

Is the meaning of this sentence clear and concise? If not, choose which sentence clarifies the meaning and makes the sentence more concise. If it is clear as written, then choose "correct as is."

A. Both stress and the chemical environment affect the durability of glassware.
B. The durability of glassware is affected by both the factors of stress and the chemical environment.
C. Durability of two factors of glassware is affected by stress and the chemical environment.
D. correct as is