Select the most appropriate meaning of the bracketed in the given sentence.
The first sample of ore from the trial boring is very promising, but we should remember that (one swallow does not make a summer.)

A

The fact of failure or escape is not affected by the narrowness of the margin

B

To come out of one trouble and get into a worse

C

A single fortunate event does not mean that what follows will also be good.

D

The whole fo everything