I would say it has to be b but its what the correct answer is its up to you!
I hoped this helped you out!
Have a nice day!
To multiply all the numbers in column A by cell C2, add $ symbols to the cell reference like this: $C$2, which you can see in the example below. Using $ symbols tells Excel that the reference to C2 is “absolute,” so when you copy the formula to another cell, the reference will always be to cell C2.
For count digits, you could just convert it to a String and check the length
Sum digits, convert to string then seperate each character with charAt then convert it to numbers in the return statement.
Average digits you can convert it to a String and then convert them back after taking them apart.
"Lithium ion" is used in your cellphone.