About a chain......

Hello fellas!
I need a chain for a crane in a 1/48 that i am detailing (is a WWII truck) i have found 3 different chains but i dont know which one would be the best for my model, the chains that i have are :

1mm links (black), 1 length of 50 cm
1.5mm links (black), 1 length of 50 cm
2mm links (black), 1 length of 50 cm

any suggestion??
thanks for your help