The correct response is:
An atom wants a full outer shell of valence electrons, so it will either transfer or share electrons depending on what the other atom needs.
This statement accurately reflects the behavior of atoms in chemical bonding, where they seek to achieve a stable electron configuration, typically resembling that of the nearest noble gas, which means having a full valence shell. To achieve this stability, atoms may either share electrons (covalent bonding) or transfer electrons (ionic bonding).