Consider the following sentences regarding translating texts, sharing ideas in early medieval India, 1. Al -Biruni's expertise in several languages allowed him to compare languages and translate texts. 2. He translated several Sanskrit works, including Patanjali's work on grammar, into Arabic. 3. For his Brahmana friends, he translated the works of Euclid (a Greek mathematician) into Sanskrit. Which of the above sentence(s) is /are true?

• A.  1 and 2                       
• B.  1 and 3
• C.   2 and 3                      
• D.  1, 2 and 3