Match the following Column I with Column II and choose the correct option.
| Column I (Dynasties of Vijayanagara) | Column II (Contributions) |
|---|---|
| a. Sangama | i. Strengthened military |
| b. Saluva | ii. Belonged to Krishnadeva Raya |
| c. Tuluva | iii. Constructed Hiriya canal |
| d. Aravidu | iv. Last dynasty of Vijayanagara empire |