The correct answer is option A.
Periodic phrase structure is the combination of antecedent and consequent units.
This type of phrases are used in the music. Antecedent and consequent are the two units or phrases that complement one another and produces balance and symmetry in music. This pair of musical period is generally used in music for rhythmic balance.
if it's for a test I'd say c. but I think you can put whatever you want in a sketchbook
Fresco: buon fresco<span>technique consists of painting with pigment ground in water on a thin layer of wet, fresh, lime mortar or plaster, for which the Italian word for plaster, intonaco, is used.</span>
