Select the most appropriate meaning of the given idiom.

Keep abreast of

Keep oneself updated

The most appropriate meaning of the idiom "keep abreast of" is >Keep oneself updated.<

It means to stay informed about the latest developments in a particular area. It is often used in the context of news or current affairs, but it can also be used in other contexts, such as business or technology.

For example, you might say that you are trying to keep abreast of the latest news on the war in Ukraine.

The other options are not correct.

• Keep up the good work: This means to continue doing something well.
• Keep ahead of: This means to be ahead of someone or something else.
• Keep a watch on: This means to observe or monitor something closely.