The correct option is C Gets up
The verb in bold 'get up' is incorrect because the verb 'get' is in the first or second person (I get, you get).
The verb must agree with the subject in person and number. Since the subject 'she' is in the third person, its verb form must be 'gets', which is also in the third person.
Hence, the correct form is 'gets up'. So, option C is correct.
Option A: 'Is getting up' refers to a continuous action during the present whereas the word 'never' (not ever) refers to a daily habit in the negative. Option B: 'Had get up' is grammatically incorrect. 'Had' refers to the past time whereas 'get' refers to the present.
Option D: 'Will have got up' refers to a completed action in the future, whereas the action here happens on a daily basis.
Hence options A, B and D are incorrect.