Which of the following is not true about alanine?

Q. Which of the following is not true about alanine?

A.            Contains a branched side chain

B.            At pH 1, it will move towards the cathode

C.            At pH 1, the overall charge is +1

D.            At equimolar mixture of D and L, alanine does not rotate the plane polarised light

Answer: Contains a branched side chain