One language to another by a bilingual or multilingual speaker:
ALanguage acquisition
BLanguage processing
CLanguage transfer
DLanguage interference
Answer:
C. Language transfer
Read Explanation:
Language transfer occurs when a bilingual or multilingual speaker applies linguistic features (such as grammar, pronunciation, or vocabulary) from one language to another.
This can happen positively (facilitating learning) or negatively (causing errors), depending on the similarity between the languages.