Marta : what does your mother do, john? john : she is a chef marta : where does she work? john : she works at a thai restaurant, the biggest international restaurant here. marta : so does she cook there all the time? john : my mother has become the head chef. she only gives instructions to the sous-chefs marta : how long has she been working there? john : she has been working since i was ten. marta : how old are you john : i’m 17 years old now. what is the responsibility of john’s mother? select one: a. working at an international restaurant b. giving instructions to the sous-chefs c. working in the restaurant for a long time d. cooking in the kitchen every mother?