Select the correct combination of mathematical signs to re place * signs and to balance the following equation :
`(sqrt(121) ** 9) ** 5 **4** 1`

Options

A. `- + xx =`
B. `+ div = xx `
C. `= + xx div`
D. `- xx + =`

Explanation

Opition (1)
`(sqrt(121)-9) + 5 xx 4=1`
`rArr (11-9) + 5 xx 4 =1`
`rArr 2 + 5 xx 4 =1`
`rArr 2 + 20 ne 1`
Option (2) `(sqrt(121) + 9) + 5 = 4 ××1`
`rArr (11 +9)+5 =4 ××1`
`rArr (20)/(5) = 4 `
4=4
Option (3)
`(sqrt(121) =9) + 5 xx 4 div 1`
`rArr 11 ne 9 + 20`
Option (4)
`(sqrt(121) -9) xx 5 + 4 =1`
`rArr (11-9) xx 5 + 4 =1`
`rArr 2 xx 5 + 4 ne 1`