The RBA will lend to banks at an interest rate of 1.75%.

A bank that expects their exchange settlement account will go into deficit will borrow from another bank at an interest rate of 2.3%.

None of the other answers are correct.

A bank with a surplus of funds in their exchange settlement account would be willing and able to lend to another bank who needs funds at an interest rate of 1.7%.

The RBA will pay banks an interest rate of 2.25% on the funds in their exchange settlement accounts.