Final answer:
The claim that the fourth movement of Bach's Cantata No. 140 features tenors singing in unison is false, as Baroque choral pieces like this one favor complex harmonies and counterpoint.
Step-by-step explanation:
The statement regarding the fourth movement of Bach's Cantata No. 140 being characterized by the tenor section singing in unison is false. When Johann Sebastian Bach composed his cantatas, including Cantata No. 140, also known as "Wachet auf, ruft uns die Stimme," he employed a rich array of vocal textures and counterpoint techniques, rather than unison singing for a tenor section in such a prominent movement. Typically, the tenor voice in Baroque choral works would interweave with other vocal lines in layers of harmony and counterpoint, consistent with the style of the period, which celebrated complex musical structures and interactions.