URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS

Mariana conducted an experiment where she burned a 5 g strip of magnesium metal in an open flame. The result was a 3.5g white ash collected in a crucible, a bright white flame, and smoke. Was the law of conservation of matter upheld in Mariana's experiment?

A. no, because mass decreased after the magnesium was burned

B. yes, because the missing mass was trapped by the closed system

C. yes, because the missing mass was released as smoke

D. no, because the magnesium was burned so mass was not lost