Who said that the decline of the Mughal Empire was due to separation from Islam...? Mcqs

Who said that the decline of the Mughal Empire was due to separation from Islam...?

(A) Haji Shariat Ullah

(B) Shah Wali Ullah

(C) Abul Kalam Azad

(D) Allama Iqbal

Source: This question is taken from the Excise And Taxation Inspector & Narcotics Control (Bs-16)