What Percy Bysshe Shelley work is the poet's answer to the mistakes of the French Revolution?

What is the term for the interval that comprises the first and eighth tones of the major and minor scales? Their sounds

are quite similar because the frequency of vibration of the higher pitch is exactly twice that of the lower.

a. clef b. antecedent c. ritard d. octave e. natural

The rhythm of this salsa standard is typical in the mambo.  What is this rhythm?

A. habanera B. cumbia C. clave D. merengue