A5 Which number must be substituted for $\square$ so that the equation $8+\frac{5}{\square}+\frac{2}{1000}=8.052$ is correct?
(A) 1
(B) 10
(C) 50
(D) 100
(E) 1000
A5. Decimal number $8,052=8+0,05+0,002=8+\frac{5}{100}+\frac{2}{1000}$, so $\square$ is replaced with 100.