Single Choice Set

This is not a bug more of a visual problem with multiple answer and single Choice questions.

when user selects the wrong anwer, the wrong answer is highlighted in red 

the correct answer, on the other hand, is not shown in green highlight. it only shows a dot inside

this creates confusion among users on my website as they do not see a green highlight, which is a universal sign of the correct answer.

I am really looking forward to fixing this and if there is anything I can do meanwhile, please help.

El contenido de error tipográfico conjunto de opción única realiza la actividad pero no me registra las calificaciones en Moodle, alguien me puede apoyar en este problema, se los agradezco de antemano.

I am not able to have full screen view for the questions that I am uploading.