Answer:
C) They can transport passengers to remote locations that do not have
airstrips.
Step-by-step explanation:
According to the excerpt, the major purpose for the use of seaplanes is to perform some exerting tasks that other airplanes may not be able to perform. This becomes necessary in the light that these seaplanes most times lie dormant because of their irregular use for military purposes.
A stated reason as to why these planes are employed by airline companies is to convey passengers to isolated locations that do not have landing grounds as the normal airplanes require.