I would say all of them. But the first fetter is identity view itself, which I understand to be the assertion of self. The other fetters are all the pitfalls of Mara.
MN64:2.5: “I remember the lower fetters taught by the Buddha as follows: identity view, doubt, misapprehension of precepts and observances, sensual desire, and ill will.
And on to the upper fetters we have barnacles of identity:
SN22.89:11.1: Although a noble disciple has given up the five lower fetters, they still have a lingering residue of the conceit ‘I am’, the desire ‘I am’, and the underlying tendency ‘I am’ which has not been eradicated.
A wish is the breath of identity. Ultimately we have:
AN3.66:47.5: So they live without wishes in the present life, extinguished, cooled, experiencing bliss, having become holy in themselves.”