Complete the sentence by stating the definite present consequence with would, not a possibility or ability with could: Sofia did not study Braille as a child, so she cannot read the labels now. If she had learned it then, she ___ them now. (understand)

Explanation

Would understand states the definite present consequence that the prompt requests from the unreal childhood condition. Could understand would instead present understanding as an ability or possibility, a standard modal meaning that this premise explicitly sets aside.