Android is a software product developed by google that allows cell phone manufacturers to control hardware and establishes standards for developing and executing applications on its platform. android is thus an example of a(n)
a. operating system
b. programming language
c. user interface distributed system
d. database management system

a. operating system

Explanation:

Operating system -

It is a software system , which enables to control the computer's software and hardware and generate the service , using both , is known as an operating system .

ALl the computer and mobile phones are in built with a operating system , for it functioning .  

Android is the most common operating system present in most of the mobile phones .

answer; i believe that technician b is correct;