For a vector addition, assume that the vector length is $8000,$ each thread

calculates one output element, and the thread block size is $1024$ threads. The

programmer configures the kernel call to have a minimum number of thread

blocks to cover all output elements. How many threads will be in the grid?

$($A$)8000$

$($B$)8196$

$($C$)8192$

$($D$)8200$