The correct option is A 4
There are a total of 17 eggs, each tray can hold 7 eggs.
So,
tray 1 --> 17 − 7 = 10
tray 2 --> 10 − 7 = 3
After filling up two trays completely, 3 eggs are still remaining.
Therefore,
The number of more eggs needed to fill another tray is 7 − 3 = 4