Which of the following was necessary to fulfill the idea of Manifest Destiny? A. nullification of unjust land grants. B. expansion of suffrage. C. the support of the Supreme Court. D. advances in transportation.

Answer 1

D. advances in transportation.

Advances in transportation were necessary to fulfill the idea of Manifest Destiny, as they facilitated westward expansion and allowed for greater movement of people, goods, and resources across the country. Roads, railroads, and waterways played a crucial role in supporting this expansion.