Suppose we have a JDBC Connection object c to a database, and this database has a relation R (name, address, phone) Columns name and address are of string type, while phone is an integer. The following objects are also declare: Statement s-null; q = "SELECT address, phone FROM R" + "WHERE name = 'Bill Gates' ". ng Resultset r null; There are many methods that could be applied to the given variables. Whena method is applied to r, assume that it holds the result of query q. Then, identify a correct use of a method from the list below. oa) r s. executeQuery (q)i b) r-executeQuery(q) O) c) string a = r. ge t String (0); d) String x - r. getInt(1);