Please i need the answer as fast as possible, just final answer

The value of the response y(t) of a first- order process to a step input reaches more than 60% of its final value when the time elapsed is equal to one time constant. Select one: True O False Which one of the below can be a ramp response of the system for first-order processes? N a. Y(S) 1 1 +-+ s+1 S S2 O b. Y(s) 4 1 1 + 2s+1 s 52 c. Y(s) = + 28+1 S d. 2 Y(S) 1 1 1 + SS2 s+1