Answer:
d. The company uses role-based access control and her user account hasn't been migrated into the correct group(s) yet
Explanation:
Since Deidre is accessing her e-mail there appears to be nothing wrong with her account or password. Since her role is new, most likely the problem is associated with her new role.
Answer:
a) no roots not in LHP
b) 2 roots not in LHP
c) 2 roots not in the LHP
d) 2 roots not in the LHP
e) 2 roots not in LHP
Explanation:

No roots not in the LHP

2 roots not in the LHP

There are roots in the RHP (not all coefficients are greater than 0).
2 roots not in the LHP

There are two sign changes in the first column of the Routh array.
2 roots not in the LHP

2 roots not in LHP
check:
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