Refer to Exhibit 6-1. Which of the following SQL statements would extract the client number and date for every instanc had a billing rate of $150 ? a. QUERY BILLING_HOURS SELECT Client_No, Date WHERE Rate =150 b. SELECT Client_No, Date FROM BILLING HOURS WHERE Rate -150 c. QUERY Client No, Date FROM BILLING HOURS WHERE Rate-150 d. SELECT Client_No, Date