In the latest version of the Moodle Mobile app (3.5) the problem detailed in tracker issue MOBILE-1709 has returned. As before, when a user attempts to play an audio file located in the "choice" fields of an MC  question (quiz or lesson) a check appears indicating that an answer has been selected. The app is not able to distinguish an attempt to start the audio player from an attempt to select the choice as the correct answer.

Steps to replicate the problem:
1) create a quiz or lesson
2) add a multiple choice question containing audio files in Choice 1, Choice 2 and Choice 3 fields 
3) start an attempt on the quiz or lesson using the Moodle Mobile app
4) attempt to play the files contained in the choices

Users expect to be able to listen to the various response options for the question and then choose an answer. However, they are only able to select answers without being able to listen to the choices.