As shown in the figure, an iron block $A$ of volume $0.25 {\mathrm{m}}^3$ is attached to a spring $S$ of unstretched length $1.0 \mathrm{m}$ and hanging to the ceiling of a roof. The spring gets stretched by $0.2 \mathrm{m}$. This block is removed and another block $B$ of iron of volume $0.75 {\mathrm{m}}^3$ is now attached to the same spring and kept on a frictionless incline plane of $30°$ inclination. The distance of the block from the top along the incline at equilibrium is

• A

  $1.1 \mathrm{m}$
• Correct answer
  B

  $1.3 \mathrm{m}$
• C

  $1.6 \mathrm{m}$
• D

  $1.9 \mathrm{m}$

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