$(6$ points$)$ Consider an n $=4$ step binomial tree with T $=\mathrm{.}5.$ Suppose r$,$ the annualized risk$-$free rate is $3\%,$ and delta, the annualized dividend rate is $1\%.$ Also suppose the annualized standard deviation of the continuously compounded stock return, sigma, is $35\%.$ Round your answers to $3$ decimals.

a$)$ Determine the gain factor u $?$

b$)$ Determine the loss factor d $?$

c$)$ Determine the risk$-$neutral probability p $?$