To determine which of the following statements are evaluated to true, let's evaluate each statement one by one:
Option A) b = x1 * 2 == x2;
In this statement, x1 is multiplied by 2 and then compared with x2 using the equality operator. If the result of the comparison is true, then b will be assigned the value true. Otherwise, it will be assigned the value false.
Option B) b = x1 + x2 != 3 * x1;
In this statement, x1 is added to x2 and the result is compared with 3 times x1 using the inequality operator. If the result of the comparison is true, then b will be assigned the value true. Otherwise, it will be assigned the value false.
Option C) b = (x3 - 2*x2<0) || ((x3 = 400)<2*x2);
In this statement, there are two parts to the expression separated by the logical OR operator (||). The first part (x3 - 2*x2<0) checks if x3 - 2*x2 is less than 0. The second part ((x3 = 400)<2*x2) assigns the value 400 to x3 and then checks if the result is less than 2 raised to the power of x2. If either part of the expression evaluates to true, then b will be assigned the value true.
Option D) b = (x3 - 2*x2>0) || ((x3 = 400) 2*x2);
In this statement, there are two parts to the expression separated by the logical OR operator (||). The first part (x3 - 2*x2>0) checks if x3 - 2*x2 is greater than 0. The second part ((x3 = 400) 2*x2) assigns the value 400 to x3 and then multiplies it by 2*x2. If either part of the expression evaluates to true, then b will be assigned the value true.
Now, let's evaluate each option:
Option A) (A), (B) & (C)
Option B) (A), (C) & (D)
Option C) (B) & (C)
Option D) (A) & (C)
Option E) (A) & (D)
Based on the evaluation of each statement, the correct answer is D) (A) & (C).
Statement (A) is evaluated to false because x1 * 2 is not equal to x2.
Statement (B) is evaluated to true because x1 + x2 is not equal to 3 times x1.
Statement (C) is evaluated to true because the first part of the expression (x3 - 2*x2<0) is false, but the second part of the expression ((x3 = 400)<2**x2) is true after assigning 400 to x3.
Statement (D) is evaluated to false because the first part of the expression (x3 - 2*x2>0) is false, and the second part of the expression ((x3 = 400) 2*x2) is not a valid expression.
Therefore, the correct answer is (A) & (C).