---Can you help me with my business?

---I’d like to,______I have a meeting to attend.

1. A.
   because
2. B.
   or
3. C.
   but
4. D.
   and

---Can you help me with my business?
---I’d like to,______I have a meeting to attend.

1. A.
   because
2. B.
   or
3. C.
   but
4. D.
   and

— Can you help me with my business?

— I’d like to,       I have a meeting to attend.

A．because              B．as              C．but                  D．and