The correct answer is A. The logical conclusion that can be made by looking at the map and graphs is that the electoral vote was overwhelmingly Democrat, as 90.5% of electoral votes went to the Democrat candidate, Lyndon Johnson.
The presidential election of 1964 was the sixth most unbalanced election in the history of the United States, after the elections of 1936, 1984, 1972, 1864 and 1980: Johnson easily won the presidency, as he had 44 of the 50 states and the District of Columbia.