On January 1, Dan sent an email to Joan offering to sell a boat (assume the boat is adequately described in the email) for $12,000. On January 3, Clare learned that Dan was interested in selling his boat so she sent an email to Dan offering to buy the boat for $13,000. Dan sent Clare an email indicating acceptance of her offer provided Clare picked the boat up from the drydock in Gagetown. On January 4, Dan sent an email to Joan indicating that he had sold the boat to Clare. Joan, however, had sent a letter by post accepting Dan's offer on January 3. This letter was received by Dan on January 6. a. Is there a contract between Dan and Clare? Explain (3 marks) b. Is there a contract between Dan and Joan? Explain