The underlined words are not appropriate for formal correspondence. Choose the correct option.

The quarterly payment is three weeks late.

overdue

The underlined words "three weeks late" are not appropriate for formal correspondence. The correct option to replace them is: overdue

Explanation:

In formal correspondence, it is more suitable to use terms that convey the delay or status of a payment without sounding negative or accusatory. "Overdue" is a more neutral and formal term indicating that the payment is late without being overly critical. It is a common and accepted term in business communication to address late payments without being confrontational.