【問題 4 】
次の英文は、ある美術館のガイド付きグループツアーの予約に関する案内（抜粋）である。大人 5 名と学生 10 名（ID 所持者）のガイド付きグループツアーを、ツアー実施日の 70日前に予約した場合、次の記述から、英文の内容に合致しているものだけをすべて選んでいるものはどれか。
Reservation Policies: Please complete the form to make a reservation online. Maximum number of participants for a single group tour is twenty. Submitting a request for a visit is not a confirmation of your reservation. A Group Sales representative will process each request in the order it was received and will then contact you. Once the visit has been scheduled, you will receive an invoice and confirmation letter.
All groups are required to book at least 60 days in advance. Change of your tour type or increase in number of participants may not be made within 30 days of the tour date without express permission from the Museum. Final confirmation will be provided following the receipt of deposit.
Should you need to cancel your tour, you must provide a minimum of 72 hoursʼ advance notification to avoid incurring a cancellation fee.
Fees and Charges: The following rates apply to groups of ten or more with advance reservations.
Admission Fees:
$20 Adults
$10 Students (with current ID)
Guide Charge:
$150 per group
A minimum 50% deposit will be required from all groups to confirm their reservation.
Payment of all remaining fees and charges is required in full at least 15 days in advance of the tour.
(ア) このグループの美術館への支払い総額は 350 ドルである。
(イ) 予約金は遅くともツアー実施日の 15 日前までに支払わなければならない。
(ウ) ツアー実施日の 25 日前に学生3名が増員となった場合、美術館の特別許可がなければ人数の追加はできない。
