Alaunch vehicle gives the spacecraft enough force to reach (select one answer)
a. the troposphere
b. orbit
c. supersonic speed
d. germany

-- The purpose of the launch vehicle is to give the spacecraft velocity,
not force.

-- The launch vehicle gives the payload the speed it needs, in the direction
it needs, to take it to wherever you want it to go. 

If it's a 'space'-craft, and perhaps you want it to stay in this neighborhood
for a while before sending it out on its long journey, you might launch it into
Earth orbit first.

The question is very broad.  If the payload is a TV satellite, then it would
be placed first into low Earth orbit, and only later raised to its operational,
geosynchronous orbit.  If the payload is a nuclear warhead, or a primitive,
deadly firecracker launched for resistance and fun from Gaza, then it would
be aimed to strike its ultimate destination by surprise and as soon as possible.

2. they have negligible mass.