Jocelyn uses a company$-$owned smartphone for her job, and has noticed that applications, data, and patches are installed on her smartphone for her by a central control group. She cannot change the system or security settings on the smartphone because the central control group handles those as well. Jocelyn's company can do this using

a$)$ a wide$-$area network

b$)$ a mesh network

c$)$ mobile device management software

d$)$ network$-$management software