What is the value for LF for Activity E if the LS for activities $H$ and I are $180/6$ and $\frac{210}{6}?$

$$ a$.\frac{153}{6}$

b$.\frac{180}{6}$

c$.\frac{210}{6}$

d$.\frac{96}{6}$

e$.\frac{114}{6}$