Texas Grill offers a contract which includes a free-standing gas grill for small patio use plus installation to a customer's gas line for a total price $700. The delivery of the grill and installation are considered separate performance obligations. On a standalone basis, the grill sells for $600 (cost $350), and Texas Grill estimates that the fair value of the installation service is $150. Texas Grill signed 15 of these contracts on May 30, 2020, and customers paid the contract price in cash. The total revenue allocated to the grill and installation, respectively, is O $8,400 and $2,100. $9.000 and $1.500. O $9.000 and $2.250. $10,500 as one performance obligation