3. 87 - 2. 59 = ?

Answer: Option D

$$\begin{array}{rl}& 3.\overline{87}-2.\overline{59}\\ & =\left(3+0.\overline{87}\right)-\left(2+0.\overline{59}\right)\\ & =\left(3+\frac{87}{99}\right)-\left(2+\frac{59}{99}\right)\\ & =1+\left(\frac{87}{99}-\frac{59}{99}\right)\\ & =1+\frac{28}{99}\\ & =1.\overline{28}\end{array}$$