The correct option is ACCEPT IT.
To resign means to accept that something unpleasant can not be avoided.
From the passage given above, it can be seen that the wife of the character of the passage had just die and the man find it difficult to accept the fact that his wife is gone forever. Thus, resign as used in the passage above means that, the man refuse to accept the fact that his wife is dead.
The answer to the question is B.
1. I started the car and quickly turned down the radio.
2. The boys are full do mischief, always looking for trouble.
3. I waited at the starting line to begin the race.
They all feel unified since moving to America from England, and have officially become a new nation.
Hope this helps