Why were miniature paintings from the medieval period observed from a closer distance?

Due to their small size and minute workmanship

The correct answer is option 4: Due to their small size and minute workmanship

Miniature paintings were created on a very small scale, often to fit in manuscripts or be held in the hand. They were admired for their minute brushwork, fine detailing, and delicate colouring. Because of their tiny size, they had to be observed from a close distance to truly appreciate the artist’s precision and craftsmanship.

"Paintings from the medieval period have earned a generic name, for example miniature paintings, owing to their relatively smaller size. These miniature paintings were hand-held and observed from a closer distance due to their minutiae. The walls of a patron’s mansions were often decorated with mural paintings. Hence, these miniatures were never intended to be put up on the walls."