Symmetrical Tetromino
True or false : It is possible to place the five tetrominoes on the lattice grid such that the resulting shape has an axis of symmetry.
Clarification : Each tetromino is made up of four unit squares of the lattice grid. All tetrominoes must be placed so they cover exactly four squares fully; you may not place them diagonally, for example. The resulting shape may be disconnected, but it must have an axis of symmetry; that is, reflecting along this axis gives the same shape. Tetrominoes may be rotated and/or reflected.
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It is possible.