Students in regular class teacher:Aasna give ans for this

Students in regular class
teacher:Aasna give ans for this question
Me:I don’t know mam
teacher:(student ki pitayi)
students durng online classes
teacher:Aasna answer this question
Me:Mam, voice is not audible clearly,mam video is not clear
teacher:Are you lying to skip the answer
Me:No mam.your voice is breaking
Teacher:Then how r u able to reply if u were not able to hear me?(online pitayi)