Select the most appropriate option to fill in the blank.
Except the editing, all the other relevant parts of the movie _____________.

Correct option is B

The correct option to fill in the blank is “are excellent.”
Explanation:
The subject "all the other relevant parts" is plural, so the verb must agree in number, making "are" the correct choice.
Example of correct answer in a sentence: Except the editing, all the other relevant parts of the movie are excellent.
Meanings of other options:
Is excellent: Incorrect, as it is singular.
Was excellent: Incorrect, as it suggests a past action that doesn’t fit with the plural subject.
Are being excellent: Incorrect, as it implies a continuous state that doesn’t fit the context.