Select the most appropriate option to fill in the blank.
Radium is a white powder that _____________ table salt.

Correct option is A

The correct option to fill in the blank is looks like.

The subject "Radium" is singular, so the verb must also be singular. The correct form is "looks like", which maintains subject-verb agreement.

Example: The new paint looks like the old one.

Meanings of other given options:

• Look like: Incorrect because "look" is plural, while "Radium" is singular.
• Will look like: Incorrect because the sentence is in the present tense, but "will look" indicates the future.
• Looking like: Incorrect because "looking like" is not grammatically suitable in this sentence structure.