In a galvanic cell, copper compartment get net negative charge due to arrival of:

Explanation

In a galvanic cell, the copper compartment becomes negatively charged due to the arrival of electrons. Electrons flow from the zinc anode to the copper cathode through the external circuit, causing the cathode to gain a net negative charge. Option B is correct because it accurately describes this process. Option A is incorrect because free charges from the zinc sulphate solution do not directly move to the copper compartment. Option C is incorrect because protons remain in the electrolyte and do not contribute to the charge of the copper compartment. Option D is also incorrect because zinc ions move into the solution from the anode but do not enter the copper compartment.