The correct answer is D. no article.
Sachin Tendulkar is the first person to score a double century in one day cricket. This means that he is the only person who has ever done this. Therefore, we do not need to use an article.
If we were to use an article, it would imply that there are other people who have also scored a double century in one day cricket. However, this is not the case. Sachin Tendulkar is the only person who has ever done this.
Therefore, the correct answer is D. no article.