Many mobile phones can now record digital video and sound. In this context, identify the correct order of some of the words A-E given below to complete the following Paragraph: 

Mobile phones have an in-built _______ to record sound. Sound is input in _______ format and is then converted into ________ format so it can be stored in the phone's memory.

A. analog

B. memory

C. digital

D. microphone

E. speaker

Choose the correct answer from the options given below;