The equation illustrates how a polymer named Kevlar is produced. $n \, \text{HOOC-}\!\left(\text{C}_6\text{H}_4\right)\!\text{-COOH} + n \, \text{H}_2\text{N-}\!\left(\text{C}_6\text{H}_4\right)\!\text{-NH}_2 \rightarrow [\text{-CO-}\!\left(\text{C}_6\text{H}_4\right)\!\text{-CO-NH-}\!\left(\text{C}_6\text{H}_4\right)\!\text{-NH-}]_n - \text{H}_2\text{O}$ Which row gives a description of Kevlar?