Final answer:
The correct statement about a sulfur-chlorine covalent compound is that electrons will reside closer to chlorine, making the bond polar, because chlorine is more electronegative than sulfur.
Step-by-step explanation:
The question is about determining the polarity of a covalent bond between sulfur and chlorine. Given the electronegativity difference between sulfur and chlorine, when these two atoms form a covalent bond, the electrons are not shared equally. Chlorine has a higher electronegativity than sulfur, which means that in a sulfur-chlorine bond, the electrons will be more attracted to the chlorine atom. This results in chlorine having a partial negative charge and sulfur having a partial positive charge, marking the bond as polar.
The correct answer to the question is therefore: a) electrons will reside closer to chlorine, and the bond will be polar.