【单选题】

 Two farmers were on their way home one evening after a hard day’s work．Both were tired．They happened to look up at the sky and SaW a black cloud overhead．

    “Ah!”said one farmer，“tomorrow we shall have rain and the rice will grow well．”The second answered，“Nonsense，the rain will only kill the crops．”
    So they began to quarrel．Just then a third farmer clime along and asked them why they were quarrelin9．Both farmers explained about the black cloud．
    “What cloud?”asked the third farmer．They all looked at the sky．The cloud was no longer there．
 The two farmers were              ．
A．going home   
B．going to the field
C．going to work
D．going to see their friend