Thebookcoversawideoftopicsoninternationalpolitics.ArangsBnumberCcollectionDamount这里感觉四个答案有点难选择...求大伙解释....

Question

The book covers a wide ___ of topics on international politics.
A rangs B number C collection D amount
这里感觉四个答案有点难选择...求大伙解释....

Answer 1

range n.范围；射程；类别；
number n.数；数目；
collection n.收集,采集；征收；收藏品；
amount n.量,数量；总额；
wide adj.宽的；普遍的；广阔的；
从意思上看,wide后面能接的只有range,其他应该是large number,big amount,收集不对.