Question

Physical materials can be classified by how much light passes through them. Clear glass, which is classified as transparent, allows all (or almost all) light to pass _wax paper, which is classified as translucent, allows only some light to pass through. Which choice completes the text so that it conforms to the conventions of Standard English? A) through, B) through C) through; D) through and

Answer 1

C

A semicolon correctly links the two related independent clauses: "Clear glass ... allows ... to pass; wax paper ... allows ... to pass through." A comma would create a comma splice, leaving no punctuation changes the meaning, and "through and" is ungrammatical here.