One writing question!!

<p>(A)One difficulty that filmmaker Ingmar Bergman (B)encountered was how (c)portraying his strictly religious (D)upbringing without slandering his parents. (E)No Error</p>

<p>(A)One difficulty
(B)encountered
(c)portraying
(D)upbringing
(E)No Error</p>

<p>Please explain me the reason~</p>

<p>I’d say C (how to portray) but I can’t provide you a clear explanation (maybe an idiom)</p>

<p>^my answer too…C</p>

<p>It should be “…how TO PORTRAY his strictly…”</p>

<p>075014 and hopingforbetter /
Thank you so much.</p>