List all the steps the universe went through while forming (There should be 6 steps)

a. ___
b. ___
c. ___
d. ___
e. ___
f. ___

Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies

The correct answer is a. we know this because n (hap) + n (hap) = 2n (dip).

Cotton was the very first