What is the order of the following events in meiotic recombination?

What is the order of the following events in meiotic recombination?

‘>’ means before

1= asymmetrical nicking

2= end trimming

3= strand invasion

4= loading of Rad51 and Dmc1

a) 1> 2> 3> 4

b) 2>1>3>4

c) 3>2>1>4

d) 1>2>4>3

e) 4>1>3>2