Statement (I) A normal shock wave cannot occur in convergent portion of a convergent-divergent nozzle. Statement (II) Shock wave is generated only when the flow is supersonic
(a) Both Statement (I) and statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
(b) Both Statement (I) and Statement (II) are individually true but statement (II) is NOT the correct explanation of Statement (I).
(c) Statement (I) is true but Statement (II) is false
(d) Statement (I) is false but Statement (II) is true