What should applicants undertake not to do
Associate their response and participation with any of their （）

A．the Public Transit system’s efficiency
B．the success of Transit Police program
C．the police’s emphasis on security of downtown areas
D．the worsening security condition of the area

A．teenagers under 14 are not allowed to visit the White House
B．foreigners are less likely to be permitted to tour the White House
C．separate tours can also be scheduld for individual visitors
D．security is the chief concern in scheduling White House tours