12. (0,5 marks) An item of stock was valued at 5.000 at 31.12. N. A provision for slow-moving stock of 10% was required at 31.12.N. At 31.12. N+1 a further provision of 20% of the net value was required. At 31.12. N+2 and 31.12. N+3 further provisions of respectively 30% and 40% of the net value were required. What was the net value of this stock item at 31.12. +3 ? a. 0 b. 1.250 c. 1.512 d. 2.500