The correct answer is C. Morocco has the lowest rate for both men and women.
Step-by-step explanation:
The literacy rate of a country refers to the percentage of the total population that is estimated to know how to read, write, spell words and use language. In the chart presented, it is Morocco the country with the lowest literacy rate for all adults.
This is because in the section "all adults", the literacy rate for men is 65.7% in Morocco, which is lower in comparison to Egypt, Tunisia, and Lybia that have a literacy rate above 70%. This also occurs in women, because the literacy rate for women in Morocco is only 39.6% while in other countries it is above 50%. Thus, it can be concluded Morocco has the lowest rate for both men and women for all adults (Option C).