想到我错失了她渐渐长大的岁月真的让我心痛。

A、 The realization that I am missing all these months and years of her formative growth is actually gnawing at my heart.
B、 The realization that I am missing all these months and years of her formative growth is actually gnawing up my heart.
C、 The realization I am missing all these months and years of her formative growth is actually gnawing at my heart.
D、 The realization I am missing all these months and years of her formative growth is actually gnawing up my heart.