Questions 168~171 refer to the following memo.
To: All StaffFrom: William JohnsonDate: December 3
Subject: Year-End Party Prize Draw
Dear Team,
--[1]--As we approach the end of the year, I am excited to announce that we will behosting our annual year-end party to celebrate our achievements throughout the year.As you know, this has been an extraordinary year for us, and we want to take thisopportunity to recognize and reward our exceptional team members.
I am excited to announce that this year's year-end party will feature our biggest prizedraw ever! We will be giving away amazing prizes, including a grand prize worth$10,000, to the lucky winners.--[2]--The prize draw will take place at the party, andfull-time employees will be eligible to participate.
This prize draw is our way of showing our appreciation for your dedication to thesuccess of our company.--[3]--
 I hope you are as excited as I am about this year's year-end party and the amazingprizes we have in store for you.--[4]--We look forward to celebrating with you soon! 
Sincerely, William Johnson
【題組】168.The word “extraordinary” in line 3, paragraph 1 is closest in meaning to:
(A)“after a long time or after a lot of things happened”
(B) “extremely unkind and unpleasant”
(C) “having an attitude that is not helpful and not expecting success”
(D)“very much more impressive than usual”