**Explanation:**

Before going out to buy a hilsa fish, Gopal performs three actions: half shaving his face, smearing himself with ash, and wearing torn clothes. The correct answer is option 'D' which states that Gopal did all of the above actions.

**Reasoning:**

1. **Half shaved his face:** Shaving half of his face indicates that Gopal wants to appear unkempt and disheveled. It is a deliberate attempt to make himself look less presentable and more like a poor person or beggar. This action is taken to deceive others and potentially negotiate a lower price for the fish.

2. **Smeared himself with ash:** Smearing oneself with ash is a common practice in India to denote mourning or sadness. By doing so, Gopal is trying to give the impression that he is grieving or going through a difficult time. This act adds to his disguise as someone who is financially struggling and may help him in bargaining for a lower price.

3. **Wore torn clothes:** Wearing torn clothes further enhances Gopal's appearance as someone who is impoverished. Torn clothes are often associated with poverty and lack of resources. By dressing in this manner, Gopal is attempting to create empathy and sympathy from the sellers, which might lead to a more favorable deal.

**Conclusion:**

By combining these three actions, Gopal is intentionally trying to create a specific image and disguise himself as a less fortunate individual. This disguise is likely aimed at negotiating a better price for the hilsa fish he intends to buy.