Final answer:
The Moche civilization is best known for building flat-topped pyramids and 2) temples in the desert of the northern coast of Peru.
Step-by-step explanation:
The Moche people, a civilization that prospered in the desert of the northern coast of Peru, are known for building flat-topped pyramids and 2) temples.
Some of these structures, like the Huaca del Sol (Temple of the Sun), served as tombs for kings.
The Moche also created other forms of impressive architecture such as aqueducts, which were part of their advanced irrigation systems necessary for agriculture in the arid environment.
Nonetheless, when considering what the Moche people specifically built in the desert of the northern coast of Peru that aligns with the options provided, the answer is pyramids and temples (option 2).