听力原文：A leading expert on ancient mountain cultures has a theory about a man who died m

ore than 5000 years ago. The man's body was found in a piece of ice high in the Alps in northern Italy in 1991. Newspapers called him the Iceman.

Two German climbers discovered the Iceman more than 3000 meters above sea level. Ice had protected the body for thousands of years. It was the oldest and best preserved ancient body ever found. When the Iceman was discovered, some scientists suggested that he had fallen asleep and died in the snow or was killed in a fall. A bow and arrows were found with the Iceman. This led some people to believe that he died while hunting animals.

Recently, scientists announced the cause of death. The scientists used X-rey equipment to produce images of the Iceman's upper chest. They found an arrowhead under the left shoulder. Scientists said he was killed by an arrow that tore through his back. They thought the killing might have been either a murder or an offering to the gods. The body was found in a long, narrow area between two of the highest mountains in the Alps. This is the kind of place where people from mountain cultures traditionally made offerings to their gods.

What is the passage mainly about？

(33)

A．The discovery of the Iceman's body.

B．The cause of the Iceman's death.

C．The murder of the Iceman.

D．The mountain people's offerings to their gods.