which option to select ?

You are required to design a counter that counts from (12 - 21) given the incomplete counter in the figure below. How can the circuit detect that the counter reached its final state? * (3.5 Points) TO Q T QH T2 Q. 13 o ciro seta cin seti clra seta cirs set cire seta clk F Let F = Q4.Q3'.Q2.Q1'.QO Let F = 24.03'.Q2.01.QO' Let F = 24.Q3'.Q2.01.20 Let F = Q4.Q3.Q2'.Q1'.QO' Let clro = clr1 = clr2 = 1 and set3 = set4 = 1 Let clro = clr2 = 1 set1 = set3 = 1 and set4 = 1 Let clro = clr1 = 1 and set2 = set3 = set4 = 1