Choose the best option to replace the underlined part to improve the given sentence. If no substitution is required, select 'No substitution.'
She remained calm by the procedure.
Show answer & explanation
Correct answer: C
Explanation
The sentence requires a preposition that indicates the duration of an event. 'Throughout' means from the beginning to the end of a particular period of time or event, making it the most appropriate choice to describe her calmness during the entire procedure.