Helen Yee's account of her father's life as a Chinese immigrant in San Francisco highlights several challenges that Chan Teung Yee faced during his journey. Based on the options provided:
A. Detention for months at Angel Island - This reflects one of the significant challenges many Chinese immigrants faced during that time due to strict immigration laws.
B. Deportation back to China - This was a constant threat for many immigrants who were subjected to harsh scrutiny and could be sent back under certain circumstances.
C. Poor living conditions - Many immigrants lived in substandard housing, facing overcrowding and inadequate facilities.
D. Long work hours - Immigrants often had to work long hours in difficult jobs to make ends meet.
E. Owning his own business - This could be considered a positive achievement rather than a challenge, and may not align with the struggles he faced initially.
In summary, Chan Teung Yee likely faced challenges A, B, C, and D in his life as a Chinese immigrant in San Francisco.