If the some of a number and its reciprocal be 2 then number is = ?

Answer: Option B

$$\begin{array}{rl}& x+\frac{1}{x}=2\\ & x^2+1=2x\\ & x^2-2x+1=0\\ & {\left(x-1\right)}^2=0\\ & \text{Then, }x\text{ = 1}\end{array}$$