听力原文： Companies often give work to an outside business that can do the job for less mo

ney than their own employees could. This is called outsourcing. Outsourcing has become a political issue in the campaign for the American presidential election in November.

Many companies in the United States have been moving jobs to countries where costs are much lower. Factory production jobs have moved away for years. But the jobs now also involve skills like computer programming.

Labor groups and workers are angry. They point to reports that say the United States has lost two-and-a-half million jobs since two-thousand-one. Most were jobs in manufacturing. Some states have lost more jobs than others. But no one seems to know for sure how many jobs left the country.

There was a recession. Jobs were cut. Yet, so far, the economic recovery has produced fewer jobs than expected. So outsourcing has created an emotional debate.

What's the purpose of outsourcing？

A．Recruiting new staff.

B．Producing quality products.

C．Increasing productivity.

D．Save money and labor cost.