Sentence structure in English follows a predominant Subject-Verb-Object (SVO) order, but can be modified for emphasis or to establish textual cohesion. Analyze the following statements:
I.In questions, the auxiliary verb (do, does, did, have) or a modal verb must generally be placed before the subject, except when the "wh-word" is the subject itself.
II.Connectors such as "however" and "nevertheless" are used to introduce a result that logically follows from the previous sentence, acting as synonyms for "so."
III.The position of adverbs of frequency, such as "always" or "never," is typically before the main verb but after the verb "to be" in simple tenses.

Choose the alternative that presents the CORRECT statement(s):