The correct statement about the term "apostle" is:
D. Apostle means 'sent' and as an office refers only to the original apostles.
In Christian contexts, "apostle" typically refers specifically to the twelve original disciples of Jesus, plus Paul, who are considered foundational figures of the church. The term derives from the Greek word "apostolos," meaning "one who is sent." While some denominations may recognize modern-day apostles, traditionally, the title is associated with the first-century apostles.