单项选择题

Denver Business Community’s
Annual Charity Marathon Schedule
The Denver Business Community is pleased to announce details of our annual Charity Marathon to be held on June 11. Each individual participant will be asked to donate a minimum of $20, payable before the race. Businesses sponsoring runners will be asked to donate a minimum of $1oo per runner.
Last year, the Charity Marathon raised $25,000. A full listing of our receipts and contributions for each year can be found on our website: www.denverbusinesscommunity.com.
This year’s race will be held as follows:
Registration            07:00 a.m.
Race                07:30 a.m.
Winners Announced          11:30 a.m.
Refreshments Served         12:00 p.m.
Speech by Mayor Preston Dalton   01:00 p.m.
Marathon Awards           01:15 p.m.
Marathon Music Madness       01:30 p.m.
Closing Ceremony          03:00 p.m.
How much will Sarah and Ted Johnson pay to enter the race

A.At least $20
B.At least $40
C.At least $100
D.At least $200