Difference between Characteristic table , Excitation table , State table, Truth table

Question

In flip flops which of the following specifies the next
state given the present state and inputs ?

(A) Characteristic table B) Excitation table
(C) Truth table             D) State table

Comments

Characteristic Table :-

Q_n+1 = (Inputs,Q_n)

 

Truth Table :-

Qn = ( Inputs )

 

Excitation Table :-

(Inputs) = ( Q_n+1, Q_n)

 

State Table :-

state = (state,input)

 

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hence ans is D