One of the contribution of Theodore Roosevelt as President was ______.
A、the banning of child labor
B、the giving of voting right to women
C、in the field of natural conservation
D、in urban renovation
【正确答案】：C
【题目解析】：本题考查美国总统西奥多罗斯福。西奥多·罗斯福作为总统的贡献之一是自然保护。
