which three elements have strong magnetic properties?\n○a. lithium, sodium, and potassium\n○b. iron, cobalt…

which three elements have strong magnetic properties?\n○a. lithium, sodium, and potassium\n○b. iron, cobalt, and nickel\n○c. boron, carbon, and silicon\n○d. neon, argon, and krypton
Answer
Brief Explanations:
Iron, cobalt, and nickel are ferromagnetic elements which have strong magnetic properties. Other options do not contain such elements.
Answer:
B. iron, cobalt, and nickel