Refer to figure.
Considering each option;

"A strainer collects unwanted particles in the fuel system." → It is true.
A strainer is designed to be fitted in the fuel systems just before (=upstream) the needle valve (the fuel metering device) to prevent foreign matter from entering and blocking the valve. On simple reciprocating engine aircraft, the fuel strainer is often in the form of a gascolator, that is nothing else than a simple strainer combined with a recipient to collect the unwanted solid particles.

"The vent lines are installed to allow the excess fuel to flow out of the tank after refueling." → It is false.
Fuel tank vents allow air into the fuel tank to replace the volume of fuel consumed by the engine and to allow for equalization of pressure (avoiding negative pressure) as the aircraft climbs or descends which helps to reduce evaporation and aids fuel transfer.

"The tank pressure is indicated in the cockpit for the fuel system." → It is false.
Aircraft Fuel System Indicators are Fuel Temperature, Fuel Pressure, and Fuel Quantity.

"A ventilation system in a fuel tank prevents the fuel from freezing during flight in icing conditions." → It is false.
Fuel tank vents allow air into the fuel tank to replace the volume of fuel consumed by the engine and to allow for equalization of pressure (avoiding negative pressure) as the aircraft climbs or descends which helps to reduce evaporation and aids fuel transfer.