you're looking for the manager?look,the man over there is___

you're looking for the manager?look,the man over there is___the manager.
a.on other than b.no other but
c.no one than d.none other than
为什么不选a?a,d不是同样的意思么?（不是……而是?）
在帮忙分析下其他选项
is the climate of italy____?
a.similar like florida
b.so much like florida
c.somewhat similar to florida
d.somewhat like that of florida