To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) & - This option is incorrect because the single ampersand (&) is a bitwise operator for AND in some programming languages, but it does not represent a logical AND operator for boolean conditions.
Option B) && - This option is correct because the double ampersand (&&) is the logical AND operator in many programming languages. It evaluates to true if and only if both conditions on its left and right sides are true.
Option C) | - This option is incorrect because the single vertical bar (|) is a bitwise operator for OR in some programming languages, but it does not represent a logical AND operator for boolean conditions.
Option D) || - This option is incorrect because the double vertical bar (||) is the logical OR operator in many programming languages. It evaluates to true if at least one of the conditions on its left and right sides is true, not both.
The correct answer is B) &&. This option is correct because the double ampersand (&&) is the proper notation to put between two boolean statements when you want your conditional to depend on both conditions being true.