Using the diagram:



1. The upper radiator hose (ITEM "A"): Is the flow
a. from radiator to block or
b. From block to radiator

From there I can conclude the lower radiator hose (ITEM "B") flow direction

2. The heater hose going from the water pump
housing to the firewall(ITEM "D"): Is the flow
a. from the water pump housing to the firewall or
b. from the firewall to the water pump housing.

Again, I can conclude the other heater hose (ITEM "C") direction also.

This is not an exam.
It is because I am stupid and never can remember which is which.
Thanks.