44. When an American lady wants to enter Taiwan for a one-week sight-seeing trip, one of the requirements is
(A) to obtain a landing-visa at the CKS airport.
(B) to apply for a visa before leaving the U.S.A.
(C) to make sure her passport was issued before May 1, 1995.
(D) to make sure her passport is valid for more than six months on the date of arrival.