Cho

Câu hỏi: Cho $a,b>0;{\log }_{3}a=p; {\log }_{3}b=q$. Đẳng thức nào dưới đây đúng?

A. ${\log }_3\left(\frac{3^r}{a^m{b}^d}\right)=r+p.m-q.d$

B. ${\log }_3\left(\frac{3^r}{a^m{b}^d}\right)=r+p.m+q.d$

C. ${\log }_3\left(\frac{3^r}{a^m{b}^d}\right)=r-p.m-q.d$

D. ${\log }_3\left(\frac{3^r}{a^m{b}^d}\right)=r-p.m+q.d$