What is comparative advantage?
a. the gain from selling a product for more than it costs to produce that product.
b. the gain from consuming a product whose benefit is greater than its cost.
c. the ability to produce a good or service at a lower opportunity cost than other producers.
d. the ability to produce more of a good or service than competitors using the same amount of resources.
e. the ability to use all available resources to produce output.

Option C

Explanation: In simple words, the ability of an organisation to carry out an economic activity more efficiently and at a lower opportunity cost than others is called its comparative advantage. Comparative advantage is seen as an indicator of labor efficiency or technological advancement.

For example - Countries like America and Germany are technologically advanced, therefore, the dominate the heavy machine manufacturing around the world.

commercial banking

provide online payment services

provide online banking

asset management firms

invest in people's funds in securities

accept tax return refunds

i would say iii (3) because in order to compare a price you have to use as a reference other near stores because it's its

hope i explained myself