Explanation:

Here’s the breakdown:

- Option 1: Ralph Fisch doesn’t fit here—there’s no notable Moroccan or medieval traveler by this name. Might be a mixup.

- Option 2: Ibn Battuta is the one. He was a Moroccan explorer, famous for traveling throughout the Islamic world and beyond. When he came to India, Muhammad bin Tughlaq was ruling. He even worked in the royal court for a while.

- Option 3: Tsang Hi looks like a typo or confusion with Xuanzang (Hsuan Tsang), a Chinese Buddhist monk who traveled much earlier, during the 7th century.

- Option 4: Nicoloi—probably a reference to Niccolò de’ Conti, an Italian traveler. Again, not Moroccan, and not connected to Muhammad bin Tughlaq’s era.

So, yeah, Ibn Battuta is the right pick here.