In the abbreviation APPLE, used for ISRO’s first experimental communication satellite, what does the letter ‘A’ stand for?

Correct option is C

​APPLE stands for Ariane Passenger Payload Experiment — India’s first indigenous experimental communication satellite, developed by ISRO.
It was launched on June 19, 1981, aboard the Ariane launch vehicle of the European Space Agency (ESA) from Kourou, French Guiana, into a Geosynchronous Transfer Orbit (GTO).​