Select the most appropriate meaning of the given idiom.

Be hard up

Have very little money

The most appropriate meaning of the idiom "be hard up" is Have very little money.

The idiom is used to describe someone who is struggling financially and does not have a lot of money to spare. It can also be used to describe someone who is in debt or who is having difficulty making ends meet.

The other options for the meaning of the idiom "be hard up" are not as appropriate.

• Unable to calculate is not typically associated with this idiom.
• Have difficulty in climbing stairs is not typically associated with this idiom.
• Find it very difficult to wake up early is not typically associated with this idiom.