Hi Sovatthika,
Saṅkhāra has a wide range of meanings: Pali glossary for Bhikkhus Bodhi and Sujato
saṅkhāra
Bodhi: (1) volitional activity; (2) formation; (3) strenuous exertion [7:16, 7:55]; (4) conditioned phenomenon
Sujato: (1) choice; (2) condition; (3) active [effort]
saṅkhata
Bodhi: conditioned
Sujato: conditioned
Bhikkhu Bodhi’s essay from his SN translation: https://www.dhammawheel.com/viewtopic.php?p=335218#p335218
As you say, “choices” is not appropriate in MN44:
“But ma’am, what is the physical process? What’s the verbal process? What’s the mental process?”
“Katamo panāyye, kāyasaṅkhāro, katamo vacīsaṅkhāro, katamo cittasaṅkhāro”ti?
SuttaCentral
Some other translations
Ānandajoti:
“In-breathing and out-breathing, friend Visākha, is bodily process, thinking and reflection is speech process, perception and feeling is mental process.”
SuttaCentral
Bodhi:
“In-breathing and out-breathing, friend Visākha, are the bodily formation; applied thought and sustained thought are the verbal formation; perception and feeling are the mental formation.”