Final answer:
Tambo uses 'Logos' in his speech by focusing on logical reasoning regarding attitudes towards liberation movements and the transfer of State power as a criterion for genuine commitment to liberation. The correct answer is option C.
Step-by-step explanation:
The type of persuasion that Tambo is using in his speech is Logos. In this part of the speech, Tambo is appealing to logical reasoning by focusing on the significance of attitudes toward the Patriotic Front and SWAPO as a measure of commitment to the true liberation of Zimbabwe and Namibia. The call for a transfer of State power is presented as a factual basis for judging genuine commitment, which is a logical appeal to the audience's sense of reason and justice.