—Where should I send my form?

—The Personnel Office is the place ________.

—Where should I send my form?
—The Personnel Office is the place ________.

—Where should I send my form?

—The Personnel office is the place ______.

[　　]

---Where should I send my form?

---The Personnel Office is the place ________．

1. A.
   for sending it
2. B.
   to send it to
3. C.
   to send
4. D.
   to send it