Major bio

there are four steps in bacterial conjugation. the second step is missing in this list.
1. special sex pilus connects two cells.
2.
3. each cell makes a complementary dna strand.
4. the cells separate.
which is the missing step for the process of conjugation described?

a) two new, identical cells are produced.
b) the cell membrane elongates and pinches off.
c) some dna moves from one cell to another.
d) a dna molecule attaches to the cell membrane.