To add 1 to the $count variable, the correct way is option B: $count++.

Explanation:

• Option A: count++ is incorrect because it is missing the $ sign, which is required to reference a variable in most programming languages.
• Option B: $count++ is correct because it uses the $ sign to reference the variable count and the ++ operator to increment its value by 1.
• Option C: ++count is also correct, as it increments the value of count by 1 before using it in any other expression.
• Option D: $count =+1 is incorrect because it uses the assignment operator = instead of the addition operator +. The correct way to increment a variable by 1 using the assignment operator would be $count += 1.

• Thanks
• Wrong explanation