Which of the following resonating structures of 1-methoxy-1,3-butadiene is least stable ?

Options

A. `overset(ө)(C ) H_(2)-overset( o+)(C)H -CH=CH-O-CH_(3)`
B. `overset(ө)(C ) H_(2)-CH=CH-CH=overset(o+)(O ) -CH_(3)`
C. `CH_(2)-CH-overset(o+)(C ) H - O - CH_(3)`
D. `CH_(2)=CH-overset(ө)(C )H-CH=overset(o+)(O) -CH_(2)`