The ornamental design for a hood, as shown and described.
FIG. 1 is a front perspective view from the top, right side of a hood according to our design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is an enlarged bottom view thereof;
FIG. 4 is a front view thereof, with the rear view thereof being identical thereto with the exception of the user interface buttons, which are not included in the rear view; and,
FIG. 5 is a right side view thereof, with the left side view being a mirror image thereof.
The broken lines indicate that the exhaust portion is of indefinite length and do not form any part of the claimed design.