What is the sequence of letters that completes the table? The table has 50 rows and 4 columns. The letters b, c, d, e appear in all columns. The l...

What is the sequence of letters that completes the table?

The table has 50 rows and 4 columns.
The letters b, c, d, e appear in all columns.
The letters a appears in the first, fifth, and ninth rows.
The letter e appears in the 13th, 15th, 17th, 19th, and 50th rows.
a) d b c e
b) a e d c
c) b c d e