How many refrigerators pipes can fit into a 110 mm x 28" wall sleeve with the following criteria: piping diameter is 1 and 1/8", pipe insulation is 0.5", the minimum clearance between insulated pipe outside edges is 1", and the minimum clearance between insulated pipe outside edges and sleeve surface is 12.7 mm?
a) Option A:

- Calculate the total diameter of the insulated pipe:
- Pipe diameter: 1 and 1/8"
- Insulation thickness: 0.5"
- Total diameter = Pipe diameter + (2 * Insulation thickness) = 1.125 + (2 * 0.5) = 2.125"

- Calculate the total clearance required for each pipe:
- Clearance between insulated pipe outside edges: 1"
- Clearance between insulated pipe outside edges and sleeve surface: 12.7mm = 0.5"
- Total clearance required = 1 + 0.5 = 1.5"

- Calculate the maximum number of pipes that can fit into the 110mm x 28" wall sleeve with these clearances and total diameter.

b) Option B:

- Calculate the total diameter of the insulated pipe
- Calculate the total clearance required for each pipe
- Calculate the maximum number of pipes that can fit into the 110mm x 28" wall sleeve with these clearances and total diameter.

c) Option C:

- Calculate the total diameter of the insulated pipe
- Calculate the total clearance required for each pipe
- Calculate the maximum number of pipes that can fit into the 110mm x 28" wall sleeve with these clearances and total diameter.

d) Option D:

- Calculate the total diameter of the insulated pipe
- Calculate the total clearance required for each pipe
- Calculate the maximum number of pipes that can fit into the 110mm x 28" wall sleeve with these clearances and total diameter.