Another reason convenience foods are likely to become more popular is the increase in the number of women with children, who work in full-time employment. 2. In the UK, for example, working mothers significantly outnumber stay-at-home mothers. 3. There is evidence that consumption of convenience foods rises with numbers of hours worked. 4. As modern life increasingly demands that people are economically active, this trend is likely to continue.下面关于这个段落阐述说法正确的选项有哪些？