Choose the best option to replace the underlined part to improve the given sentence. If no substitution is required, select 'No substitution.'
He completed the project primarily by hard work and dedication.
Show answer & explanation
Correct answer: A
Explanation
Correct Answer: primarily through
Explanation
• The preposition through is appropriately used to denote the means, agency, or process via which an outcome or success is accomplished, especially before abstract noun phrases such as hard work and dedication.
• The preposition by usually pairs with a gerund when indicating a method (e.g., by working hard) or points to an agent, making primarily through the standard and idiomatically correct choice here.
Example: She achieved success through consistent practice and patience.