Correct option is B
The Moti Masjid, also known as the Pearl Mosque, in Agra was built by the Mughal Emperor Shah Jahan. It is renowned for its architectural beauty and is one of the many significant constructions attributed to Shah Jahan, who is also known for building the Taj Mahal. The mosque is made of white marble, giving it a resemblance to a pearl, which is how it got its name.