Given the following information, what is the minimum nominal diameter of the discharge branch for the bathroom sink? Dimensioning of the Sewage Pro...

Given the following information, what is the minimum nominal diameter of the discharge branch for the bathroom sink?
Dimensioning of the Sewage Project
Dimensioning of the Bathroom
Table 1: Diameter of discharge branches
Table 2: Toilet bowl
Table 3: Bathroom sewage branch
Table 4: Discharge branches
Table 5: Toilet bowl
Table 6: Bathroom sewage branch
Table 7: Nominal diameter of service area appliances
Table 8: Nominal diameter of kitchen appliances
Pipe drop
The nominal diameter of the discharge branch of the shower is 40mm.
The nominal diameter of the discharge branch of the bathroom sink is 40mm.
The nominal diameter of the sewage branch for the bathroom is 100mm.
The nominal diameter of the sewage branch for the toilet bowl is 100mm.
The nominal diameter of the ventilation branch for the bathroom is 50mm.
The nominal diameter of the discharge branch of the kitchen sink is 50mm.
The nominal diameter of the sewage branch for the kitchen is 40mm.
The nominal diameter of the ventilation column is 50mm.
a) 40mm
b) 50mm
c) 75mm
d) 100mm