The correct answer is: A. High oblique
A high oblique photograph is taken from an airplane or helicopter at a high altitude, with the camera pointing down at the ground. This type of photograph provides a wide view of the landscape, but it does not show much detail.
A low oblique photograph is taken from a lower altitude than a high oblique photograph, with the camera pointing down at the ground. This type of photograph provides a more detailed view of the landscape than a high oblique photograph, but it does not show as much of the landscape.
A vertical photograph is taken from directly above the ground, with the camera pointing straight down. This type of photograph provides the most detail of the landscape, but it does not show the landscape in its entirety.
Therefore, the coverage is least if photography is a high oblique photograph.