Consider the following statements 1. One revolution of moon around the earth is called sidereal month. 2. Moon's period of revolution with reference to sun is known as synoptic month. Which of the above statements is/are correct?

• A. ?1 only?????????? ??????????????
• B. ?2 only
• C. ?Both 1 and 2???? ???????????
• D. ?Neither 1 nor 2