Final Answer:
The browser will display A) "Welcome WilWheaton" in the body of the document when the PHP script is executed with the given URL parameters.
Step-by-step explanation:
The correct answer is A) "Welcome WilWheaton." When the PHP script is executed with the given URL parameters, the concatenation of the values assigned to "fname" and "lname" results in "Welcome WilWheaton." The absence of a space or any additional characters between "Wil" and "Wheaton" is reflective of the direct concatenation operation in the PHP script.
In PHP, when combining strings, there is no automatic insertion of spaces or characters unless explicitly specified in the script. Therefore, the concatenation of "Wil" and "Wheaton" without any intervening characters leads to the output "Welcome WilWheaton." Options B, C, and D involve variations that either include spaces, ampersands, or additional characters, which do not align with the specific concatenation operation described in the PHP script.
This understanding of string concatenation in PHP underscores the importance of considering the script logic and operations when predicting the output. In this case, the correct interpretation of the concatenation operation results in the displayed output of "Welcome WilWheaton" in the browser