Option B will be the answer.
Reason:-
This is because Jessica can see two colours, for example, red and yellow.
When Jessica sees this, her brain sends impulse signals considering 'red' as one colour and 'yellow' as another separate colour.
Now, the mind, by following the brain signals, majorizes the two separate colors as per the informations previously stored in brain. As there were many red players and yellow players, it assumes one color and checks for same like colors. The same colors are sent to brain. Now it's easier for the brain to understand them.
This is why Jessica perceived the soccer players as two different groups.
~ Benjemin360