Only after the woman had her own child ______how difficult it was to be a mother.

Only after the woman had her own child ________ how difficult it was to be a mother.

A. she realized         B. had she realized

C. she had realized      D. did she realize

Only after the woman had her own child ______how difficult it was to be a mother.

Only after the woman had her own child _______ how difficult it was to be a mother.

Only after the woman had her own child ___ how difficult it was to be a mother.