问题: Accordingtothepassage,thewriterofthisarticleseemstobe_______.
A: urgeachangeinourpresentdiet
B:interestedinsweetenedfood
C:worriedaboutmodernfood
D:increasetheyieldsoftheircrops
E:muchofthefoodtheyeatisnotgoodforhealth
F:improvetheirworkingconditions
