Concept:
Glycerol is a trihydric alcohol.
Its molecular structure is:
\[
\text{HO-CH}_2-\text{CH(OH)-CH}_2\text{-OH}
\]
So the correct bond-line structure must show:
• a three-carbon chain
• one \(-\text{OH}\) group attached to each carbon
e}
ip
Step 1: Recall the structure of glycerol.
Glycerol contains three carbon atoms in a row and three hydroxyl groups.
So its formula is:
\[
\text{C}_3\text{H}_5(\text{OH})_3
\]
ip
Step 2: Match this with the given bond-line structures.
The correct structure must represent:
\[
\text{HO-CH}_2-\text{CH(OH)-CH}_2\text{-OH}
\]
Among the given figures, option (C) matches this arrangement.
ip
Hence, the correct answer is:
\[
\boxed{(C)}
\]