What are some of the unique challenges presented by urban consumers in relation to the sustainability of the global food system?(Please select two answers)- 未答复
选项：

A:Urban consumers are disconnected from where their food is produced
B:Urban consumers eat less fruit and vegetables than in the past
C:People in urban areas are more influenced by Western food culture e.g. they often eat more meat.
D:Urban consumers often spend so much time on social media that they forget to eat so they actually consume less than other types of consumers.