Which of the following is an example of a functional requirement?

a$.$ The vending machine shall not dispense a chocolate if the temperature of a food item goes above $6C.$

b$.$ Each order shall be assigned a unique identifier $($Order$\_$ID$),$ which should be linked to a customer.

c$.$ Users must change the initially assigned login authentication information $($password$)$ immediately after the first successful login$.$

d$.$ The system shall not be shut down for maintenance more than once in a $24-$hour period.

Consider the diagram holnw than calert the ctatamant that ic mnct enrrart about the diagram:

a$.$ There is a composition relationship between the Smartphone class and the Battery class.

b$.$ A Camera is dependent on the Battery $($based on the diagram$).$

c$.$ A Music Player is a part of the Smartphone and is dependent on the existence of $($cannot exist without$)$ the Smartphone.

d$.$ There is an aggregation relationship between the Smartphone and the IMEI number.

Which of the following best illustrates the relationship between a class and an attribute?

a$.$ The entity Fruit with the attribute Grape

b$.$ The entity Student with the attribute Lecturer

c$.$ The entity Product with the attribute Colour

d$.$ The entity Sale with the attribute Supplier

If a client indicates that it wants all its users to be involved in the requirements analysis phase and also wants to maintain low$-$medium cost, which of the following requirements elicitation techniques$/$tools would you use?

a$.$ Interviews

b$.$ JAD

c$.$ Questionnaires

d$.$ Observations