If Variable a Is Host Variable and Dev_a Is a Device

Multiple Choice

If variable a is host variable and dev_a is a device (GPU) variable, to copy input from variable a to variable dev_a select correct statement:

A) memcpy( dev_a, &a, size) ;
B) cudamemcpy( dev_a, &a, size, cudamemcpyhosttodevice ) ;
C) memcpy( (void*) dev_a, &a, size) ;
D) cudamemcpy( (void*) &dev_a, &a, size, cudamemcpydevicetohost ) ;