Yes. He saw them has a subject (he), a verb (saw), and an object (them), so it is totally a sentence.
market economy is an economic system in which the decisions regarding investment, production, and distribution are guided by the price signals created by the forces of supply and demand. The major characteristic of a market economy is the existence of factor markets that play a dominant role in the allocation of capital and the factors of production
Answer:
a) i read a lot of novels last week
