Consider the following statements in respect of two integers p and q (both > 1) which are relatively prime: 1) Both p and q may be prime numbers. 2) Both p and q may be composite numbers 3) one of p and q may be prime and the other composite. Which of the above statements are correct?

• 1 and 2 only
• 2 and 3 only
• 1 and 3 only
• 1, 2 and 3