Some people like modern art, while others say that is rubbish. But a cleaner who works in the Tate Gallery in London isn’t able to tell the difference. The woman, whose name isn’t known, mistook a work of art by the German painter Gustav Metzger for a bag of rubbish, and threw it out with other bags. The plastic bad, which contained pieces of paper and cardboard, was later recovered outside the gallery, but the artist thought that it was too damaged to be put on show again. 78-year-old Mr Metzger explained that the exhibit, which he said was a copy of a similar work he had created in 1960, was meant to show that all art is temporary and “finite”(有限的).
Embarrassed officials at the museum said that they had had to call a meeting with cleaners to explain which things should not be touched. They would not say whether Mr Metzger would be paid any compensation for the incident. However, to make absolutely sure the same thing would not happen again, they decided to cover Mr Metzger’s work every evening with a colored cloth. In this way the cleaners arriving after the gallery had closed to the general public would realize they should not touch it.
This is not the first time that museum cleaners have had trouble distinguishing exhibits from rubbish. In 2001, in another London gallery, a cleaner threw away a work by the well-known British artist Damien Hirst. It was an arrangement  of empty beer bottles, coffee cups, and overflowing ashtrays, which were meant to indicate the chaos in the life of an artist.
However, cleaners don’t always throw things away—sometimes they clean them! This was the case with a dirty asking what the bath was doing in the gallery, the cleaners simply scrubbed it clean.
What’s the best title of the passage?

A．Cleaners mistake modern art for rubbish

B．Modern art shouldn’t be cleaned

C．What makes a great work of art

D．Cleaners don’t always throw things away

Which of the following is not true?

A．People have different opinions on modern art

B．Mr Metzger would be paid much compensation

C．A work of Damien Hirst was thrown away by a cleaner in 2001

D．Some modern work is about artists’ chaos of their life

The last paragraph is written to show that____________.

A．cleaners often make exhibits as clean as possible

B．cleaners can’t always differ exhibits from rubbish

C．exhibits are usually difficult to clean

D．exhibits are not always so beautiful