In bringing an electron towards another electron, the electrostatic potential energy of the system :

decreases

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increases

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remains same

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becomes zero

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Solution

The correct option is B increases
The electron has negative charge. When an electron is approaching towards another electron, then due to same negative charge repulsive force is produced between them. So, to bring them closer a work is done against this repulsive force. This work is stored in the form of electrostatic potential energy. Thus, electrostatic potential energy of system increases

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