About $T(n,k)=\frac{1}{(n+1)!}+\frac{1}{(n+2)!}+\frac{1}{(n+3)!}+...+\frac{1}{(n+k)!}$ where $n,k\in \mathbb{N}$

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For $n,k\in \mathbb{N}$ let $$T(n,k)=\frac{1}{(n+1)!}+\frac{1}{(n+2)!}+\frac{1}{(n+3)!}+...+\frac{1}{(n+k)!}$$

Which of the below statement(s) hold true

(A)$T(n,k)\geq \frac{1}{2}$

(B)$T(n,k)> \frac{1}{(n-1)!}$

My Attempt

I am trying to create a geometric progression $T(n,k)=\frac{1}{(n+1)!}+\frac{1}{(n+2)!}+\frac{1}{(n+3)!}+...+\frac{1}{(n+k)!}<\frac{1}{n+1}+\frac{1}{(n+1)^2}+...$

but am not getting anywhere