Select the most appropriate option to fill in the blank.

Success in any field depends ______ hard work and determination.

on

The most appropriate option to fill in the blank is on.

The word on means in or to a particular place or position. In this context, the sentence is saying that success in any field depends on hard work and determination. This means that success is achieved through hard work and determination.

The other options are not correct.

• With means in the company of or in conjunction with. It does not make sense in this context because success is not achieved in the company of or in conjunction with hard work and determination.
• For means intended for or used for a particular purpose. It does not make sense in this context because success is not intended for or used for hard work and determination.
• In means in or within a particular place or area. It does not make sense in this context because success is not in or within hard work and determination.