Which of the following would not be a reasonable precursor of the target shown below? 
Definitions:
Nonlinear Molecule
A molecule that does not have a straight-line or linear shape, often having a bent or three-dimensional structure.
Vibrational Modes
The different ways in which the atoms in a molecule can move relative to each other, important in the study of molecular IR spectroscopy.
Atoms
The smallest units of matter that retain the properties of an element, comprising protons, neutrons, and electrons.
Stretching Vibration
A vibrational movement in molecules where atoms move along the line of the bond, changing the bond length.
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