The finest calligrapher at Akbar's court who was honoured with the title "Zarrin-qalam" was

Muhammad Husayn

The correct answer is Option (3) → Muhammad Husayn

Muhammad Husayn:

• Muhammad Husayn was a renowned calligrapher during the Mughal era, particularly during the reign of Akbar.
• He was honored with the title "Zarrinqalam," which translates to "Golden Pen."
• This recognition indicates his exceptional skill and mastery in the art of calligraphy, a craft highly valued in the Mughal court.

So, the correct option is [3].