Answer:
b is the correct answer
Explanation:
and i learned this in school and i have been doing this for good hope it helps
Serotonin which is an abnormal chemical activity in the body's endocrine system.
The smallest distinctive sound units in a language that an individual can distinguish are phonemes.
What is a phoneme?
A phoneme means smallest portion in a sound, which conveys different meanings to words spoken.
When a phoneme is pronounced, there is a difference in it, distinct from other words.
Hence, the smallest distinctive sound units in a language that an individual can distinguish are phonemes.
Learn more about phoneme here : brainly.com/question/7618756
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