Consider the following polynomials : 1. s4 + 7s3 + 17s2

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Consider the following polynomials :
1. s⁴ + 7s³ + 17s² + 17s + 6.
2. s⁴ + 11s³ + 41s² + 61s + 30.
3. s⁴ + s³ + 2s² + 3s + 2.
Among these polynomials, those which are Hurwitz are

1. 1 and 3
2. 2 and 3
3. 1 and 2
4. 1, 2 and 3

Correct Option: C

NA