The following statements refer to situations occurring in Process Q of an organisation which operates a series of consecutive processes: (i) Direct labour is working at below the agreed productivity level. (ii) A machine breakdown has occurred. (iii) Direct labour is waiting for work to be completed in a previous process. Which of these situations could give rise to idle time?
A、(i) and (ii) only
B、(i) and (iii) only
C、(ii) and (iii) only
D、(i), (ii) and (iii)