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 declared:

Statement s = null;
String q = "SELECT address, phone FROM R" + "WHERE name = 'Bill Gates'".
ResultSet r null;

There are many methods that could be applied to the given variables. When a 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.

a) String x = r. getInt (1);
b) r = c. executeQuery (g) ;
c) int p = r. getInt (2);
d) r = s. executeQuery ( );