Which climate would be the best for farming a variety of crops year-round?

The Mediterranean climate zone.

Explanation:

(because this zone has mid to warm climate with seasonal rainfall in the winter months helps in the cultivation of grain crops like wheat and barley. Fruits like grapes, figs, walnuts and olives grow well in Mediterranean climate due to ideal soil types and dry summers.)

the proximity of water was an advantage to western europe and its culture was able to flourish as a result. trade and travel by sea were easier and safer in historical times.

1. there are no mountains to protect it from the sea

2. and its has wet cool summers and wet, mild winters.