I wonder why Jenny ______ us recently. We should have heard from her by now. [ ]

A. hasn't written

B. doesn't write

C. won't write

D. hadn't written

《旅行社管理条例》及其实施细则规定，国际旅行社的经营范围包括______业务、______业务和出境旅游业务，但未经国家旅游局批准，任何旅行社不得经营中国境内居民出境旅游业务和______业务。