A study showed the category price elasticity of Gym membership market$-1\mathrm{.}25.$ Star Gym is considering lowering its prices by $9$ percent. If $x,Y,$ and the other Gym representatives matche the price cut, what is the sales change that Star Gym can expect?

a$.$ If Star lowers it price by $9\%,$ it can expect its sales to increase by $25\%$

b$.$ If Star lowers it price by $9\%,$ it can expect its sales to increase by $11\%$

c$.$ If Star lowers it price by $9\%,$ it can expect its sales to increase by $11\mathrm{.}25\%$

d$.$ If Star lowers it price by $9\%,$ it can expect its sales to increase by $10\%$