Which option creates alternating rhythm through both texture and colour?

Correct answer: Red rough followed by blue smooth sequence

The governing concept is alternating rhythm, produced when two or more qualities repeat in a regular A-B pattern. In option A, red rough and blue smooth alternate, so both colour and surface texture participate in the sequence. Option B repeats one unchanged condition, C shows a gradual value progression rather than alternation, and D lacks regular order. Therefore A is the only complete answer.