A、It’s about 2,500 pounds. B、It’s about 2,500 dollars. C、It’s about 250 pounds. D、It’s about 250 dollars. B

A deaf and blind woman from Australia has become the first person to make a telephone call using a device that converts speech into Braille.(5)The technology is being tested for the first time in Australia and the United States. One test involved a simple phone call between two sisters.
    Michelle Stevens is deaf and blind. Ms. Stevens says the braille telephone will end years of feeling isolated, or feeling alone and apart from others. The Braille telephone system will be a great help to her and others. This telephone system will be one way to break the isolation of deaf-blindness.(6)She adds that with future developments, the phone system might be able to give deaf-blind people more job opportunities. Not being able to communicate in the office or on the telephone is a major employment barrier for people who are deaf-blind. The phones work by transferring spoken words onto what is called a " dynamic braille display. "(7)However, the phone system is expensive. It costs about $2,500.
5. Where was the technology first tested?
6. What might the phone system give to the deaf-blind?
7. How much is the phone system?