Let $C$ be smooth curve, and let $F$ be a stable rank 2 vector bundle of odd degree equal to $2c+1$, $c\in\mathbb{N}$, and fix a point $p\in C$:
Can one choose an epi-morphism $u:F\rightarrow \mathbb C_p$ such that $u$ does not vanish on all the sub-line bundlebundles of $F$ of degree $c$? (where $\mathbb C_p$ is the skyscraper sheaf)
Thank you.