What statement accurately describes an advantage of manual RF site surveys over predictive site surveys?

Manual site surveys are useful for locating and identifying sources of RF interference, while predictive site surveys are not capable of this task.

Manual site surveys are more efficient than predictive site surveys in large facilities because GPS mapping can be used.

Manual site surveys are more accurate than predictive site surveys because they take advantage of complex computer simulations.

Manual site surveys allow the site surveyor to create a static RF environment, whereas predictive site surveys are subject to changes in the RF environment.