In phonology, what is the term for the phenomenon in which one sound becomes mor...

Questão de Inglês da banca Avança SP aplicada no concurso Prefeitura de Juquitiba SP (2024). Confira a resolução completa abaixo:

In phonology, what is the term for the phenomenon in which one sound becomes more similar to a neighboring sound, resulting in two sounds becoming more alike, such as altering the pronunciation of "handbag" to "hambag" due to the influence of adjacent sounds?