Correct option is B
Explanation:
The term
pointing refers to the process of finishing the mortar joints in masonry. It involves removing a portion of the old or damaged mortar from the joints and replacing it with new mortar to improve the appearance, durability, and weather resistance of the masonry work.
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Painting: Refers to applying paint to a surface, not relevant to mortar joints.
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Plastering: Refers to applying a layer of plaster over surfaces to make them smooth, not specific to mortar joints.
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Centering: Refers to temporary supports for arches or domes during construction, unrelated to mortar joints.
