You use SQL Server 2012 to store data used by an e-commerce application. You develop a stored procedure named sp1. Sp1 is used to read the price of all the products sold on the e-commerce site. You need to ensure that sp1 can read data even while another transaction is modifying the price of a product. Sp1 must only read committed data. Which transaction isolation level should you use in sp1?
C. Repeatable read
D. Read committed