The ornamental design for the seating arrangement, as shown and described.
FIG. 1 is a first side perspective view of a first embodiment of the seating arrangement, with all support elements in front of a seat in a rest condition.
FIG. 2 is a second side perspective view of the arrangement of FIG. 1.
FIG. 3 is a third side perspective view of the arrangement of FIG. 1.
FIG. 4 is a rear perspective view of a second embodiment of the seating arrangement, with all support elements in an upright condition.
FIG. 5 is a front perspective view of the arrangement of FIG. 4; and,
FIG. 6 is a side perspective view of the arrangement of FIG. 4.
Any support element can be in an upright condition or rest condition independently of other support elements. The broken lines in the figures are for environmental purposes only and form no part of the claimed design.