The first step from the 'bundle' view of the self as a collection of distinct and changing ideas to an account of how we get to an idea of a single, enduring self is:

a$)$ The recognition that though the ideas are distinct and changing, they are related.

b$)$ The recognition that there must be some substance that underlies the changing ideas.

c$)$ The recognition that there is something constant, namely change itself.

d$)$ The recognition that ideas cannot exist without a self to 'have' them.