阅读理解。

     This is a picture of Mr. Li's family. The man in the middle is Mr. Li. The woman is Mr. Li's wife. They have two sons. The child behind Mr. Li is Li Lei. He's thirteen. The other in front of Mrs. Li is Li Ming. He is eleven. Li Lei and Li Ming are in the same school, but not in the same grade. Li Lei is in Grade Two. Li Ming is in Grade One. They are good students.

1. There are _______ people in the picture.

A. three

B. four

C. five

D. six

2. LiLei and Li Ming ______ in the same grade.

A. is

B. isn't

C. are

D. aren't

3. Mr. and Mrs. Li have _______.

A. one boy, one girl

B. two children

C. two girls

D. one boy

4. Li Ming is ________ brother.

A. Mr. Li's B. Mrs. Li's

C. Li Lei's

D. we don't know.

5. How old are Li Lei and Li Ming? They're _____.

A. eleven and thirteen

B. eleven and twelve

C. twelve and eleven

D. thirteen and eleven

2001年10月，法国某公司(卖方)与中国某公司(买方)在上海订立了买卖200台电子计算机的合同，每台CIF。上海1000美元。以不可撤销的信用证支付，2001年12月在马赛港交货。2001年11月15日，中国银行上海分行(开证行)根据买方指示向卖方开出了金额为20万美元的不可撤销的信用证，委托马赛的一家法国银行通知并议付此信用证。2001年12月20H．卖方将200台计算机装船并获得信用证要求的提单、保险单、发票等单据后，即到该法国议付行议付。经审查，单证相符，银行即将货款议付给卖方。与此同时，载货船离开马赛港10天后，由于在航行途中遇上特大暴雨和暗礁，货船及货物全部沉人大海。此时开证行已收到了议付行寄来的全套单据，买方也已得知所购货物全部灭失的消息。中国银行上海分行拟拒绝偿付议付行已议付的货款，理由是其客户不能得到所期待的货物。根据国际贸易惯例．现问：

买方的损失如何得到补偿（）。

A．买方可凭保险单及有关载货船舶沉没的证明到保险公司索赔

B．买方不可向保险公司索赔

C．买方向卖方索赔

D．买方向开证行索赔