Study the following information carefully and answer the questions given below.
A,B,C,D,and E are five persons employed to complete a job X.

All the persons worked on the job X for a whole number of days.
Two jobs Y and Z are similar to job X and require the same effort as required by job X.
E worked on job Z for 5 days and the remaining job was completed by A, B and D, who worked on alternate days starting with A followed by B and D in that order. What is the complete number of days for which A has worked?

Options

A. 2
B. 4
C. 9
D. 3

Answer

D