The correct option is "Neither 1 nor 2" because Saint Nimbarka, a proponent of the Dvaita-Vedanta philosophy, lived in the 12th century, well before Akbar's reign (1556-1605). Similarly, Saint Kabir, a 15th-century poet-saint, was not significantly influenced by Shaikh Ahmad Sirhindi, who was active later in the 16th and 17th centuries. Understanding the historical timeline and the relationships between these figures is crucial for the UPSC examinations, as it emphasizes the importance of chronological context in Indian history.