ZENITH

The correct answer is: B. Top

Zenith is the highest point in the sky, directly overhead. It is the opposite of nadir, which is the lowest point in the sky. Acme is the highest point of achievement or excellence. Pinnacle is a pointed summit or top, especially of a mountain.

Here are some examples of how the word “zenith” is used in a sentence:

• The sun was at its zenith at noon.
• The zenith of his career was in the 1980s.
• The zenith of the Roman Empire was in the 2nd century AD.

Here are some examples of how the word “acme” is used in a sentence:

• The company has reached the acme of its success.
• The painting is a masterpiece, the acme of the artist’s work.
• The acme of luxury is a private jet.

Here are some examples of how the word “pinnacle” is used in a sentence:

• The mountain’s pinnacle was shrouded in clouds.
• The cathedral’s pinnacle is a work of art.
• The company’s pinnacle of success was the opening of its new headquarters.