Is it correct to say "Here probably arises a pertinent question as to why he would want to study mathematics now, if he didn't like it as a?

child?", or "Here probably the pertinent question arises as to why he would want to study mathematics now, if he didn't like it as a child?', or "Here probably the/a pertinent question arises, "Why would he want to study mathematics now, if he didn't like it as a child?".... show more child?",
or "Here probably the pertinent question arises as to why he would want to study mathematics now, if he didn't like it as a child?',
or "Here probably the/a pertinent question arises, "Why would he want to study mathematics now, if he didn't like it as a child?".
Would it be proper for written American English?
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