Write the next sentence in this paragraph:

How to make avocado butter
Acquire two small, ripe avocados.
Search supermarkets, farmers markets, and local fruit stands. Look for avocados that are firm, unblemished, and uniformly brown.

OPTIONS:
[a]. Produce them in approximately 3-4 weeks. If your avocado is not already ripe, toss it with 2 avocado slices..
[b]. Review these qualities to determine whether an avocado is ripe : Check the color and appearance: choose avocados without dark blemishes or deep indentations on the skin. California hass avocados ripen into a dark green or black shade; if they are green at all, they probably aren't ripe..
[c]. If they have bite marks, they likely may not be healthy avocados. You can find the varieties by searching the fruit specialty section of the grocery store..
[d]. Take out the stalk with a kitchen knife and pluck the very tips. Look for blackheads or bruises on the avocados..
[b].