Final answer:
The performing forces of Monteverdi’s Si ch’io vorrei morire is a 5-voice group with instrumental accompaniment.
Step-by-step explanation:
The correct answer is d. 5-voice group with instrumental accompaniment. Monteverdi’s Si ch’io vorrei morire is a madrigal from his fourth book of madrigals, published in 1603. It is written for a five-voice vocal ensemble (SSATB) with instrumental accompaniment, making it a 5-voice group with instrumental accompaniment.