Consider the cyclic process described by the figure shown below. If Q is negative for the process BC and $\backslash$Delta U is negative for the process CA$,$ determine the signs of Q$,$ W$,$ and $\backslash$Delta U associated with each process.

Process Q W $\backslash$Delta U

AB

$---$Select$---$

$---$Select$---$

$---$Select$---$

BC negative

$---$Select$---$

$---$Select$---$

CA

$---$Select$---$

$---$Select$---$

negative