In the following question, out of the given four alternatives, select…

The best alternative to express the meaning of the idiom/phrase "over and above" is in addition to.

The idiom "over and above" means in addition to something that is already required or expected. It is often used to describe something that is extra or above and beyond what is necessary.

Here are some examples of how the idiom "over and above" can be used in a sentence:

• The company offered a salary of $100,000, over and above benefits.
• The firefighters worked over and above the call of duty to save the trapped residents.
• The student volunteered over and above her studies to help out at the local soup kitchen.