【单选题】No investment offers a better return than giving the children the best start in life. Research has shown that for every US $1 spent -I would say invested -- on early childhood programs, countries enjo...
A.
It plays an essential role in fighting against poverty constantly.
B.
Countries will save later costs by seven times the amount once invested.
C.
Young children who receive good early care will thrive physically and mentally.
D.
Research has invested US $1 for each child and the countries have enjoyed the benefits.