Question

The following sentences test correctness and effectiveness of expression.

Astronomy is the study of celestial bodies in outer space, especially their positions, dimensions, movements, and composition.

• A. Especially their positions, dimensions, movements, and composition
• B. And especially they are concerned with their positions, dimensions, movements, and composition
• C. Especially studying their positions, dimensions, movements, and composition
• D. Especially their positions, dimensions, movements, and with their composition
• E. With special study of their positions, dimensions, movements, and including composition

Answer 1

The correct option is A Especially their positions, dimensions, movements, and composition

The underlined construct is correct as is: it fits with the structure of the entire sentence, has a sound construction with no grammatical errors. Thus A is the answer.