Which of the following statements is/are correct?

a. Al Biruni described Sanskrit as an easy language to master for someone who has learned Persian and Arabic. b. He remarked that Sanskrit was a language of an enormous range, both in words and inflections, something like Arabic. c. Al Biruni's works were circulted as manuscripts till the seventeenth century when they were finally published in 1670-71 and translated into English, Dutch, German and Italian within the next five years.