My aunt was a dancer and she went on ______ stage at ______ age

My aunt was a dancer and she went on ______ stage at ______ age of eight.
A、the, an
B、/, the
C、the, the
D、a, /
【正确答案】：C
【题目解析】：go on the stage为固定搭配，意为登台演出，at the age为特指。故选C。