REFER TO THE CIRCUIT SHOWN BELOW FOR PROBLEMS $108,109,$ AND $110$

$108.$ What is the value of $I_1?$

a$.-4$ A

b$.10$ A

c$.1$ A

d$.3$ A

e$.$ None of the above

$109.$ What is the value of $I_2?$

a$.-1$ A

b$.3$ A

c$.6$ A

d$.-2A$

e$.$ None of the above