The paragraph below contains irrelevant sentences.Look at the initial sentence in each paragraph to see what the focus of that paragraph should be and identify the irrelevant sentences.（）

The Greek islands make a perfect place to go on holiday.a） There are literally hundreds of islands to choose from.b） Athens is the rather overcrowded and polluted capital of Greece.c） Many of the Greek islands are still very unspoiled and quiet， retaining traces of a more peaceful pace of life.d） For those wanting more excitement， there are islands with plenty of bars and restaurants.e） Getting to the islands could not be easier； there are regular ferry connections to all the main islands from Athens and Rafina.f） Some people can feel rather unwell when traveling by boat.

A.a）

B.b）

C.c）

D.d）

E.e）

F.f）

正确答案：b）；f）