Resposta:

A) Changing one's accent is harder for adults than for children due to factors like reduced brain plasticity, established muscle memory, deeply ingrained habits, social and cultural pressures, time constraints, and motivation. While adults can still make progress with effort, achieving a completely native-like accent may be more challenging for them compared to those who learn accents or languages during childhood.

B) Approximately one-fifth of Brits may try to change their accents for various reasons. This can be attributed to factors such as a desire for social mobility, wanting to distance oneself from regional stereotypes, professional aspirations, the need for social integration, peer influence, personal preference, and seeking speech therapy or coaching. It's important to note that the motivations for accent modification are personal and can vary widely among individuals.

C) Bidialectalism: Bidialectalism is the ability of an individual to effectively use and switch between two different dialects or varieties of a language. In the context of the passage, it refers to the capacity of some people to maintain and switch between their native accent or dialect and another accent or dialect, often for social, professional, or communicative purposes.

Leveling: Leveling, in the context of language, refers to the process of reducing or minimizing regional or social variations in pronunciation, vocabulary, or grammar within a language. It can involve the smoothing out of differences in speech patterns, resulting in a more standardized or neutral form of the language. In the passage, leveling could refer to the tendency of some individuals to modify their accents to sound more neutral or in line with a specific standard accent, such as Received Pronunciation in the UK.

D) It is beneficial to stop viewing your accent as something negative because doing so promotes cultural pride, effective communication, authenticity, diversity, and inclusivity. It boosts confidence, reduces anxiety, and fosters mutual respect for linguistic diversity, contributing to a more inclusive and accepting society.