English, 01.12.2021 20:30 helpmewithmath70

A scientist performed an experiment using a wax candle and a large airtight glass container filled with oxygen. Nothing could get into or out of the glass container during the experiment. The scientist measured the mass of the unlit candle and the container to be 956 grams at the beginning of the experiment. Then, she lit the candle. After a short time, the candle stopped burning, and it appeared slightly smaller. What will the mass of the candle and the container be now that the experiment is over?
A.
The mass will be exactly 956 grams because mass is always conserved in closed systems.
B.
The mass will be less than 956 grams because smoke weighs less than wax.
C.
The mass will be less than 956 grams because burning the candle turns it into energy.
D.
The mass will be more than 956 grams because burning the candle creates smoke.

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