Concept:
When viewing an object from a given direction, only the faces directly visible from that direction appear in the projection.
Internal holes or features appear only if they are exposed in the viewing direction.
Curved cut-outs appear as curved boundaries only if the cut is open towards the observer.
Step-by-step analysis:
The arrow indicates viewing the object from the right-hand side.
From this direction, the rectangular vertical face on the right is clearly visible.
The semi-circular cut-out on the right side is open toward the observer and must appear as a curved notch.
The cylindrical hole on the upper block is not visible from this direction, so it should not appear in the view.
The long horizontal arm extends to the left and appears as a straight rectangular projection.
Comparison with options:
Option (A): Missing correct curvature alignment.
Option (B): Correctly shows the stepped profile and the semi-circular cut-out without showing the top hole.
Option (C): Incorrect extra internal division.
Option (D): Shows an incorrect triangular/arched feature.
Hence, the correct view when looking in the direction of the arrow is Option (B).