Add your headings in the row of cells at the top of the sheet
The answer is the letter B.
Ummmmm....... i would say true, hope that helped, if not im super sorry :)
That means the device is programmed to mark the word as grammatically incorrect, if you double tap the word there should be a correct suggestion of the word instead. This may not always be the right one tho, ask someone experienced if you’re unsure.