Which of the following cities was built by Humayun at Delhi?

Correct option is B

Dinpanah was a city built by Humayun at Delhi. It was established as his new capital in 1533 but was later abandoned. Dinpanah, also knownas "Refuge of the Faithful," was one of the historic cities of Delhi and played a significant role during the Mughal period.
Akbarabad: This city was founded by the Mughal emperor Akbar the Great in 1556. It was later renamed Agra.
Muhammadabad, Maharashtra: Founded by the Mughal emperor Muhammad Shah (r. 1628-1658). The exact year is not definitively documented.
Muhammadabad, Bihar: Established by Muhammad Quli Khan in the 16thcentury, the exact year is unclear.
Siri: This refers to Siri Fort, a historic area in Delhi. Sher Shah Suri, a Pashtun emperor, built the fort between 1538-1541.