Short Answer Questions:

$3.$ In each structure below draw in the hydrogen that is most likely to be abstracted in a homolytic cleavage:

$3$a$.$ Circle the radical that is not a resonance form that would result from homolysis of the weakest $C-H$ bond in the diene shown in the box below:

$3$b$.$ Draw the resonance hybrid of the radical that forms from the homolysis reaction indicated in the box in part $3$a above: