[单选题]
The graph below shows th 4 ey9obm f7wz*)khw yiips5y*l6m8h3e relationsnlil07 +k vqod;g1af*hip between maternal age and the incidence of non-disjunction. What relationship is suggested by the data in the graph+ga7qli ovnfl;k1d 0*?
A. There is a positive correlation between age and incidence of non-disjunction.
B. There is a negative correlation between age and incidence of non-disjunction.
C. There is no correlation between age and incidence of non-disjunction.
D. Non-disjunction only happens when maternal age is above 35.
