With reference to the cultural history of India, consider the following statement:

1. White marble was used in making Buland Darwaza and Khankah at Fatehpur Sikri.
2. Red sandstone and marble were used in making Bara Imambara and Rumi Darwaza at Lucknow.

Which of the statement given above is/are correct?

a) 1 only

b) 2 only

c) Both 1and 2

d) Neither 1 nor 2