Regarding below two statements:

(I) A standard electrical plug fits into an outlet in only one way because one of the two prongs is larger than the other. This ensures that people will insert the plug properly to create a grounded circuit.

(II) After withdrawing money, bibibi sound follows to remind cardholder to retrieve their debit/credit card from an ATM machine.

What is the answer, A,B,C or D:

A. Both statements are an example of poka-yoke.

B. Both statements are an example of cause-and-effect analysis

C. (I) is an example of poka-yoke and (II) is an example of Jidoka

D. Both statements are an example of Jidoka