What transponder equipment is required for airplane operations within Class B airspace? A transponder

When operating an airplane for the purpose of takeoff or landing within Class D airspace under special VFR, what minimum distance from clouds and what visibility are required?

Which is true regarding flight operations to or from a satellite airport, without an operating control tower, within the Class C airspace area?

(Refer to figure 54, point 4.) The thinner outer magenta circle depicted around San Francisco International Airport is