Final answer:
Sofia will need to access Utility software to configure her laptop's resources, including optimization, antivirus functions, and backup operations. Security software, a subset of utility software, specifically addresses antivirus needs.
Step-by-step explanation:
To configure and optimize the laptop's resources, use antivirus software, and follow backup procedures, Sofia will need to access Utility software. This type of software is designed to help manage, maintain, and control computer resources, offering tools for system optimization, disk management, and backup. Utility software includes disk cleanup tools, disk defragmenters, system monitors, and backup utility programs. For antivirus purposes, specific Security software is required, which is also considered a type of utility software focused on protection against malware and other security threats. Though not part of the options provided, using cloud services for backup might involve Cloud software, but the primary answer to the question, following the given options, is Utility software.