I answer I will buy food downstairs myself . However , a few minutes later , I realised I really could n't any eatable things in the food court near my school . I knew the quality of the food they have so ... Anyway , I called my mother back and enquired her to take away something for me instead .

[a]. They wanted their mom to stop buying food .;
[b]. None of the above choices .;
[c]. They wanted their mom to meet them at the food court .;
[d]. They wanted their mom to get them food .;
Answer the following question: Why would the narrator make a last minute call to their mom ?
[d].