Aplot below the lower control limit on the range chart:
(i) should be ignored since lower variation is desirable.
(ii) may be an indication that process variation has decreased.
(iii) should be investigated for assignable cause.

id i guess (III)

i like mee not u so hahahal0ol

answer; i believe the correct answer is norming;

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail