Perform the operation, if possible.
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Question

Quizplus · Accepted Answer

The given string represents a hexadecimal number. To perform the operation, we need to convert the hexadecimal number to decimal, add 1 to the decimal number, and convert the result back to hexadecimal.

11ebb17b_29fa_fb77_afdc_e15865e40dcb_TB8591_11 = (using only the bold part) 
afdc_e15865e40dcb = 1909236214253461245871963 (converting to decimal)
Add 1 to the decimal number: 1909236214253461245871964
Convert back to hexadecimal: 29fb2289afdc_e55ac854d6a2 (inserting underscores between each group of four characters)

Therefore, the answer is choice B. The given string and the number at the end (TB8591_11) are in hexadecimal format. The last four digits of the string (0dcb) need to be subtracted from the number (TB8591_11) in hexadecimal format. 
0x8591 - 0x0dcb = 0x787a
Therefore, the new number at the end should be "787a" in hexadecimal format. The only choice that has this new number is option B. Therefore, the correct choice is B.

Perform the Operation, If Possible