Fumaric Acid, C₄H₄O₄, Can Be Extracted from Plants and Can

Fumaric acid, C₄H₄O₄, can be extracted from plants and can be used as a substitute for citrus acid in fruit drinks. The percent composition by mass of fumaric acid is ________.

A) C 33.33% H 33.33% O 33.33%
B) C 39.80% H 6.68% O 53.52%
C) C 40.00% H 6.67% O 53.33%
D) C 41.39% H 3.47% O 55.14%
E) C 0.25% H 0.25% O 0.50%