Carolyn owns a 5-year GIC where she earns 4.0% in the first year, 4.5% in the second year, 5.0% in third year, 5.5% in the fourth year and 6.0% in the fifth year. What type of GIC does she hold? 

a) equity linked GIC 

b) standard GIC 

c) escalator GIC 

d) interest rate linked GIC