Question

The Cash table below contains seven attributes. Which of those could possibly be foreign keys? (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.)

Cash Receipt:

Remittance Advice #	Date	Amount	Customer #	Check #	Invoice #	Cashier #
RA-220	11/02/2016	2549.90	C-12	201	S-101	E-13345
RA-278	11/10/2016	699.90	C-5	1457	S-108	E-13347
RA-276	11/30/2016	1209.70	C-9	392	S-107	E-13345
RA-289	11/30/2016	949.95	C-28	2558	S-105	E-13346

• Customer #unanswered
• Check #unanswered
• Cashier #unanswered
• Amountunanswered
• Dateunanswered
• Remittance Advice #unanswered
• Invoice #

Answer 1

The Foreign keys are the following:

Invoice #

Check #

Remittance Advice #

Explanation: A foreign key is a column or group of columns in a relational database table that provides a link between data in two tables. It acts as a cross-reference between tables because it references the primary key of another table, thereby establishing a link between them.