The cups will be arranged in a 3 × 3 matrix. We need to remove cases where any one row contains only Tea i.e. all 3 Teas in a single row.

This can happen in 3 ways – first, second or third row. Therefore 3 cases need to subtracted from total combinations possible.

Total arrangements = 9! /(6! x 3!)
Required answer = total arrangements possible – 3 = 84 – 3 = 81

Hence, option (d) is the correct answer.