The answer is D I believe
Answer:
Lego Ninjago
Explanation:
Because You Actually Know What's Happening To The Entire Ninjago Series,How The Masters Of Spinjitsu Were Formed,Who Was The Green Ninja,The Gold Ninja Etc...
It's Just Understandable
A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
Ancient roman architecture if you need a more specific answer let me know :) hope this helps!
The answer is 77 years old, since the sisters are 3 years apart.