听力原文： About 5,000 Kenyans have demonstrated in the capital Nairobi, objecting to tax h

ikes. The protesters called on the government to scrap new taxes, convene a convention to write a new constitution, stop harassing students and halt ethnic violence. The government says the tax increases are necessary to close a budget deficit.

About ______ Kenyans have demonstrated in the capital Nairobi.

A．500

B．5,000

C．50,000

D．2,500