Who offer support to the South Vietnamese leader

Explanation:

President Eisenhower pledges support to Diem's government and military forces. Eisenhower wrote to South Vietnamese President Ngo Dinh Diem and promised direct assistance to his government.

What is true of private corporations is that they are not owned by the general public - D.

Private corporations are usually being owned by a small number of individuals who hold great power in their hands and then also dictate how these corporations work and how well they fare in their endeavours (services they provide).