A 3-sigma control chart is established and the following two rules are used together to detect out-of-control situations

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A 3-sigma control chart is established and the following two
rules are used together to detect out-of-control situations of a
normally distributed process. Rule 1: 3 out of 4 consecutive points
are outside of 1.75 sigma but still within the control limits. Rule
2: A run of eight consecutive points on one side of the center line
but still inside the control limits. Compute the total type 1 error
if both rules are used together.
Select one:
a. 0.0077
b. 0.0038
c. 0.1243
d. 0.0055
e. 0.0024