Jo'siah wonders if he can block the radio waves emitted by the remote control used to operate his radio-controlled car. He covers the remote control in different materials and tries to use it to operate his car. His observations are recorded in the table below.
Materials Observations
Cotton remote control works
aluminum foil remote control does not work
plastic wrap remote control works
wax paper remote control works
Why does the remote control work with all the materials except when covered with aluminum foil?
a. because the aluminum foil blocks the radio waves
b. because the aluminum foil blocks the sound waves
c. because the aluminum foil blocks the batteries
d. because the aluminum foil blocks the gamma rays