1. A display control apparatus comprising: a plurality of receivers each of which is configured to acquire image data; at least one processor; and at least one memory storing a program which, when executed by the at least one processor, causes the display control apparatus to: determine, as a display target, image data acquired by at least one of the receivers on the basis of an acquisition result by the plurality of receivers; and set a first display mode, in which two or more images based on two or more image data acquired by two or more of the receivers are displayed together, in a case where the two or more image data are determined as the display targets, and set a second display mode, in which one image based on one image data acquired by one of the receivers is displayed, in a case where the one image data is determined as the display target, wherein in a case where a plurality of image data are acquired and formats of the plurality of image data are not the same, one format is determined based on the formats of the plurality of image data, and one or more image data having the determined one format are determined as the display target.