Which prefix means through, across and is used in terms such as transcontinental?

• A. Trans-
• B. Post-
• C. Sub-
• D. Bi-

Answer: (A)

The concept tested is recognizing direction or position prefixes. The prefix that means across or through is trans-, which signals crossing from one side to the other. In transcontinental, trans- indicates spanning or crossing an entire continent. This same prefix appears in words like transport or translate, where the idea is moving across or through something.

The other prefixes don’t convey crossing: post- means after; sub- means under; bi- means two. They don’t capture the sense of moving across or through a boundary, so they don’t fit transcontinental.