Is there any way to scan such negatives with a flatbed scanner, and have the output be B&W?

If i choose for it to be a negative scan, the output will be orange/black Not sure if the right way is to choose the option to be "black and white only" when scanning, or to convert the result to greyscale in photoshop.

Does it make any difference to the accuracy of the color? Thanks in advance for any advice.

No time to go to the darkroom for now...