The following queries will execute without any errors

Question $30$ options:

SELECT city,COUNT$(*)$ AS num$\_$of$\_$records

FROM customer;

SELECT city,creditlimit,COUNT$(*)$ AS num$\_$of$\_$records

FROM customer

GROUP BY city,creditlimit;

SELECT city,COUNT$(*)$ AS num$\_$of$\_$records

FROM customer

GROUP BY custnum;

SELECT city,COUNT$(*)$ AS num$\_$of$\_$records

FROM customer

GROUP BY city;