Group VII elements are

Correct answer: good oxidizing agents.

Explanation: Group VII (modern Group 17) are the halogens (F, Cl, Br, I, At). They have very high electronegativity and electron affinity, so they readily gain one electron to form X⁻. By accepting electrons, they cause other species to lose electrons—i.e., they act as oxidizing agents.

• monoatomic – Incorrect. Halogens exist mainly as diatomic molecules (F₂, Cl₂, Br₂, I₂).
• highly electropositive – Incorrect. They are highly electronegative non-metals.
• electron donors – Incorrect. They are electron acceptors, not donors.