Among the following equations the one that most accurately describes the graph shown below is

• A

  $y=x \sin \frac{\pi}{x} ; \quad 0 \lt x \lt 1$
• Correct answer
  B

  $y=x \cos \frac{\pi}{x} ; \quad 0 \lt x \lt 1$
• C

  $y=\frac{1}{x} \sin (\pi x) ; \quad 0 \lt x \lt 1$
• D

  $y=\frac{1}{x} \cos (\pi x) ; \quad 0 \lt x \lt 1$

Hence, the correct answer is option: 'B'.