After a long discussion about the advantages and disadvantages of the plan, they finally came to a(n)       that it was practical.

A．decision           B．opinion            C．conclusion              D．impression

After a long discussion about the advantages and disadvantages of the plan, they finally __________ a conclusion __________ it is relatively practical.

A. came up, that                  B. came into, /            C. came over, /           D. came to, that