There are large number of silver coins weighing 2 gm, 5 gm, 10 gm, 25 gm, 50 gm, each. Consider the following statements.
1. To buy 78 gm of coins one must buy at least 7 coins.
2. To weigh 78 gm using these coins one can use less than 7 coins.
Which of the statements give above is/are correct ?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2