A: Strong and broad peak at 3300 cm⁻¹; no peak between 1680-1600 cm⁻¹.
B: No peak at 3300 cm⁻¹; no peak between 1680-1600 cm⁻¹.
C: No peak at 3300 cm⁻¹; medium intensity peak between 1680-1600 cm⁻¹.

A: No peak at 3300 cm⁻¹; no peak between 1680-1600 cm⁻¹.
B: No peak at 3300 cm⁻¹; medium intensity peak between 1680-1600 cm⁻¹.
C: Strong peak at 3300 cm⁻¹; strong peak between 1680-1600 cm⁻¹.

A: No peak at 3300 cm⁻¹; medium peak between 1680-1600 cm⁻¹.
B: No peak at 3300 cm⁻¹; No peak between 1680-1600 cm⁻¹.
C: Strong and broad peak at 3300 cm⁻¹; No peak between 1680-1600 cm⁻¹.

A: Strong and broad peak at 3300 cm⁻¹; no peak between 1680-1600 cm⁻¹.
B: Strong and broad peak at 3300 cm⁻¹; medium intensity peak between 1680-1600 cm⁻¹.
C: No peak at 3300 cm⁻¹; No peak between 1680-1600 cm⁻¹.