Arrange the following proteins in the proper order in which they participate in DNA replication.
1 = Primase
2 = Helicase
3 = Single-strand binding proteins
4 = DNA polymerase
a) 1, 2, 3, 4
b) 1, 3, 2,4
c) 2, 3, 1, 4
d) 2, 3, 4, 1
E) 2, 4, 3, 1