For the following Relation composed of Attributes: A

$,$

$$B

$,$

$$C

$,$

$$D

$,$

$$E

$,$

$$F

$,$

$$G

$,$

$$H

$,$

$$I$,$ J

$.$

Given the following dependencies:

$$

$->$

$$

$,$

$$

$$

$->$

$$

$$

$,$

$$

$->$

$$

$,$

$$

$->$

$$

$,$

$$

$->$

$$

$$

$,$

$$

$->$

$$

$$

a

$)$

$$Determine the keys of the relation. Show your work.

b

$)$

$$Determine if the relation is in

$2$

$$

$$

$.$

$$Explain why or why not.

Show your work in the space below