Answer:
B. Install in Safe Mode.
Step-by-step explanation:
Since Jennifer is using the administrator account, she should be able to install the program.
Hence, she should install the anti-malware software in Safe Mode.
In Computer science, Safe Mode is a mode in which the operating system loads only the bare minimum services, process and programs to boot or start up.
Hence, Safe Mode will ensure that when Jennifer is installing the anti-malware software, no other program or service is running which may interfere with her installation.