Fill in the blank with the most appropriate word.

______ of our success depends on our own efforts.

Much

Much of our success depends on our own efforts.

Explanation:

• Few: This word indicates a small number or quantity. In this context, "few of our success" doesn't make logical sense.

• Many: This word indicates a large number or quantity. However, in this context, using "many" doesn't properly convey the idea that success depends on efforts.

• Much: This is the correct word to use. "Much of our success" indicates a significant portion or extent of our success depends on our efforts.

• Less: This word would be used to compare two quantities, but it doesn't fit the context of indicating the extent to which success depends on efforts.