Which statement accurately describes the difference between osteopenia and osteoporosis?

Osteopenia is a more severe form of osteoporosis with a T-score < -2.5

Osteopenia affects men more commonly than women, while osteoporosis affects women more commonly than men

Osteopenia is a milder form of bone loss than osteoporosis, with T-scores > -1

Osteoporosis is a reversible condition, while osteopenia is irreversible