According to the chart above, which of the following events occurred in los angeles between 1940 and 1970? i. the white population increased. ii. the hispanic and black populations increased. iii. the total population increased. iv. non-whites became a majority in the city. a. iii. and iv. only b. i., ii., and iii. only c. ii., iii., and iv. only d. i., ii., iii., and iv.