Can we draw the following hypothesis from the context (see options)? 

Context:

She was certainly no more than fifty and , in spite of her grey hair , looked almost girlish , so bright were her dark eyes , so clear-cut and fresh her delicate face , and so smart her general appearance .<br>Frances , although not given to sudden likings , took one for Mrs. Kennedy .<br>She thought she had never seen so charming a face .<br>She found herself enjoying the day immensely .<br>In fact , she forgot the Governor 's picnic and Sara Beaumont altogether .<br>Mrs. Kennedy proved to be a delightful companion .

Hypothesis: Her hair was not always grey.
Select from the following.
a). Yes.
b). It's impossible to say.
c). No.
b).