Which of the following can be recognized by a Deterministic Finite-state Automaton ?

• A. Set of binary string in which number of zeros is same as the number of ones.
• B. Numbers, 1,2,4, ....... zN ..... written in binary.
• C. Set of binary string in which number of zeros is same as the number of ones.
• D. Numbers 1, 2, 4, ........, zN ...... written in unbinary.