Most of the options in the Unearthed Arcana - Class Feature Variants begin with:

A [classname] has access to the following feature(s).

And then follow a general trend of referencing class names, feature names, whether it replaces or enhances, and sometimes a level requirement.

For example:

Sorcerer

A sorcerer has access to the following features.

...

Metamagic Options

3rd-level sorcerer feature (enhances Metamagic)

When you choose Metamagic options, you have access to the following additional options.

How is access supposed to be interpreted when using feats that allow you to pick from another class' spell lists, metamagic options, invocations, etc, when you are not the class that was given access?

• Such as a fighter with magic initiate choosing druid and wanting to pick up acid splash.

What if you are the right class but the incorrect level?

• Such as a variant human sorcerer using metamagic adept to access metamagic before level 3 and wanting to pick up elemental spell.

How do you interpret the requirements for class feature variants?