Which of the following asymptotic notation is used to provide lower boundary…

Asymptotic notations are used to describe the growth rate of functions. The notation that provides a lower boundary constraint is Ω (Omega).

O (Big O) notation gives an upper bound, meaning the function grows no faster than the given rate.

Θ (Theta) notation gives a tight bound, meaning the function grows at the same rate as the given expression.

Ω (Omega) notation gives a lower bound, meaning the function grows at least as fast as the given rate.

ω (Little omega) notation gives a strict lower bound, meaning the function grows strictly faster than the given rate.

Therefore, the notation used to provide lower boundary constraints is Ω.