Correct option is A
Given:

Given Sign | + |
Interchanged Sign | |
Using BODMAS rule.
Equation I: 16 9 + 2 3 - 5 = 17
New equation: 16 + 9 2 3 - 5 = 17
16 + 6 - 5 = 17
16 +1 = 17
17 =17
Equation II: 43 11 - 44 11 + 11 = 10
New equation: 43 + 11 - 44 11 11 = 10
43 + 11 - 4 11 = 10
43 + 11 - 44 = 10
54 - 44 = 10
10 = 10
So, Both I and II is true.
Thus, correct option is (a).