A sample of Si weighs 78.5 grams. Will a sample of C that contains the same number of atoms weigh more or less than 78.5 grams?
(A) A sample of C weighs less than 78.5 grams. (B) A sample of C weighs more than 78.5 grams. (C) A sample of C weighs exactly 78.5 grams. (D) The weight of a sample of C cannot be determined without additional information.