Answer: B. x  
Explanation:
Sign we use to denote less than '<' .
Sign we use to denote greater than or equal : 

The expression to show all values of x greater than -1 : 

The expression to show all values of x less than 2 : 

Now , the expression is used to show "all values of x greater than or equal to −1 and less than 2".
  −1 ≤ x < 2
So , the correct answer : B.  −1 ≤ x < 2