Tiếng Anh Lớp 10: It is disruptive and discourteous to carry on a phone conversation during dinner or while the family is watching a program on TV. (closest) A. being impolite and showing little respect B. being polite and showing respect C. being uneducated and causing offence D. being polite and offering assistance, giúp em giải bài này ạ, em cảm ơn thầy cô và các bạn nhiều.