Select the most appropriate meaning of the underlined idiom in the given sentence.

The intern aspired to understand the ins and outs of the operating systems of institution.

Detailed description

The most appropriate meaning of the underlined idiom in the given sentence is detailed description.

The idiom "ins and outs" means the details of something, especially something complex or difficult to understand. It is often used to describe someone who wants to learn everything there is to know about something.

In the given sentence, the intern is saying that they want to understand the detailed operation of the institution's operating systems. This means that they want to know how the systems work, how they are used, and any potential problems that they may have.

The other options are incorrect:

• Stern regulations: This is not the meaning of the idiom "ins and outs."
• Prior conditions: This is not the meaning of the idiom "ins and outs."
• Elaborate theories: This is not the meaning of the idiom "ins and outs."