Question

after nelson mandela was freed from prison in1990, he and president f. w. de klerk presented competing arguments to the unitednations. developed a two - state solution to south africasproblems. worked together on rewriting the south african constitution became locked in a struggle for control of thecountry.

Explanation:

After Nelson Mandela was freed in 1990, he and President F. W. de Klerk worked together on significant political changes. South Africa was transitioning from apartheid. Rewriting the constitution was a key step in creating a more inclusive and democratic South Africa. Presenting competing arguments to the UN (first option) doesn't align with the collaborative nature of their post - 1990 efforts. A two - state solution (second option) is more associated with issues like the Israeli - Palestinian conflict, not South Africa. And a struggle for control (fourth option) contradicts the fact that they were working towards a peaceful transition.

Answer:

C. worked together on rewriting the South African constitution