Which of the following is an important reason for using a VHF intermediate frequency in an HF receiver?

In a superheterodyne receiver, an image response is an unwanted signal that mixes with the local oscillator to produce the same intermediate frequency (IF) as the desired signal. The image frequency is always separated from the desired frequency by exactly twice the IF. If an HF receiver uses a very low IF, the image frequency ends up being very close to the desired frequency. This makes it extremely difficult for the front-end RF filters to reject the image without also attenuating the desired signal. By using a high intermediate frequency (such as a VHF IF for an HF receiver), the image frequency is pushed physically far away in the RF spectrum. This large separation allows even relatively simple front-end filters to easily and completely block the image response.