The most important tool in brick laying for lifting and spreading mortar and for forming joints is A. Trowel B. Square C. Bolster D. Scutch

A trowel is used to lift mortar from a bucket or mortar board and spread it on the surface of a brick. The trowel is also used to form the joints between bricks.

A trowel is an essential tool for bricklaying. It is used to apply mortar, form joints, and smooth the surface of bricks.

The other options are not as important as a trowel for bricklaying.

A square is used to check the alignment of bricks. It is a flat, rectangular tool with two perpendicular sides.

A bolster is a heavy hammer used to break bricks. It is a long, thick bar with a flat head.

A scutch is a tool used to smooth the surface of bricks. It is a small, flat tool with a handle.