In rectangle ABCD, if ( m∠ EAB = (4x + 6)° ), ( m∠ DEC = (10y + 11)° ), and ( m∠ EBC = 60° ), what are the values of ( x ) and ( y )?
a) ( x = 12, y = 4 )
b) ( x = 6, y = 3 )
c) ( x = 10, y = 5 )
d) ( x = 8, y = 2 )