Elmo Painting Service signed a contract charging a customer $3,000 to paint the customer's house. The contract includes all paint and all painting labor. Elmo would charge $1,200 for the paint if sold separately, and $2,800 for the labor if done using the customer's paint. How much of the transaction price would Elmo allocate to its performance obligation to provide paint to the customer? A. $0 B. $900 C. $1,200 D. $3,000 A O B