Step 1: Washington and CO.1 belong to an unrelated papaya lineage, ruling out options (1) and (2).
Step 2: CO-2 is a separate TNAU release, unrelated to Surya, ruling out option (3).
Step 3: Surya was developed at IIHR Bengaluru from Sunrise Solo \( \times \) Pink Flesh Sweet.
Step 4: The correct answer is Sunrise Solo \( \times \) Pink Flesh Sweet.