In which of the following first resonating structure is more stable than the second?
A. `overset(Theta)(CH_(2))-CH=OharrCH_(2)=CH-O^(Theta)`
B. `overset(o+)(CH_(2))-O-CH_(3)harrCH_(2)=overset(o+)(O)-CH_(3)`
C. `CH_(2)=CH-NH_(2)harroverset(Theta)(CH_(2))-CH=overset(o+)(NH_(2))`
D. `overset(o+)(O)-CH=CH_(2)harrO=CH=overset(o+)(CH_(2))`
