Final answer:
The correct SQL statement to change the phone number for Printing Is Us in the PUBLISHER table is: UPDATE PUBLISHER SET phone_number = '800-714-8321' WHERE publisher_name = 'Printing Is Us'.
Step-by-step explanation:
The correct SQL statement to change the phone number for Printing Is Us in the PUBLISHER table is:
a) UPDATE PUBLISHER SET phone_number = '800-714-8321' WHERE publisher_name = 'Printing Is Us';
This statement uses the UPDATE command to modify the phone_number column in the PUBLISHER table. The WHERE clause specifies the condition that the publisher_name must be 'Printing Is Us'. The new phone number is specified as '800-714-8321'.