Alex's Computer Services enters into a contract for the installation of a new Dell computer system at ABC Marketing. The contract calls for delivery of computers, software, installation and networking the computers. If a problem later occurs with one of the computers overheating and making noise

Alex's is liable to fix it as they are a merchant.

Alex's is liable to fix it if the predominant purpose of the contract was for the sale of goods, not services, and they are a merchant.

Alex's is not liable because they did not manufacturer the computers.

Alex's is not liable because they disclaimed all express warranties.