Final answer:
The tequila-based counterpart to the vodka-based Moscow Mule is known as a Mexican Mule, which is also referred to as a Tequila Mule.
Step-by-step explanation:
The vodka-based Moscow Mule has a tequila-based counterpart fittingly named after this animal: C) Donkey. The tequila-based drink is known as a Mexican Mule or sometimes more informally as a Tequila Mule. It substitutes vodka with tequila and maintains the use of ginger beer and lime juice, the signature components of the original Moscow Mule. The name Mexican Mule aptly reflects the tequila's Mexican heritage while playing on the mule part of the Moscow Mule, which might have been inspired by the kick of the ginger beer that could be likened to a mule's kick.