<span>The sentence which does not contain any errors in comma usage is:
A. He can juggle several tennis balls, but he doesn't like tennis.
In this sentence, comma is used to denote a brief pause at the same time separates the dependent and independent clauses for emphasis.</span>
a mark or character used as a conventional representation of an object, function, or process, e.g., the letter or letters standing for a chemical element or a character in musical notation.
"bicycle tire" is the direct object receiving the noun<span />
