Please answer all parts to the question below: **I will upvote**

The distribution of the life of a certain kind of light bulb is approximately normal & known to have mean 125 hours & variance 18 hours. A random sample of 36 such light bulbs had a variance of 10 hours. Would you still consider 18 to be a valid population variance for this bulb? Find a suitable probability, & then answer the question. Choose the closest correct answer, up to four decimal places. O A. 0.9975, valid O B. 0.0155, not valid O C. 0.9977, valid O D. 0.9845, valid O E. 0.0025, not valid OF. 0.0143, not valid G. None of the other answers are correct