The sentence 'I appreciate your working late this weekend on Saturday' is considered acceptable.

• A. True
• B. False
• C. It should be rewritten to avoid redundancy
• D. It is acceptable in informal emails

Answer: (A)

Redundancy can be acceptable when it helps specify timing. In this sentence, the phrase “this weekend” sets a broad time frame, and adding “on Saturday” singles out the exact day within that frame. That kind of clarification is common in everyday English and doesn’t make the sentence ungrammatical; it just sounds a bit more explicit or emphatic. So the construction is acceptable, especially in informal or conversational contexts where speakers often add detail for clarity. In formal writing you might prefer a tighter phrasing to avoid repetition, but the sentence is not wrong as it stands.