The Gupta culture made many significant contributions in the areas of mathematics, science, and art, as is shown above in the picture of a Gupta sculpture of Buddha. One of the discoveries the Gupta's are most known for is the A.
creation of the wheel.
B.
concept of zero.
C.
invention of irrigation.
D.
idea of an arch or column.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.