A Review of Research Reveals Two Articles That Have Conflicting

A review of research reveals two articles that have conflicting results. A national randomized controlled trial found that annual brain scans will allow early detection and treatment of brain cancers, reducing mortality by 65%. An international
Quasi-experimental trial reported no significant reduction in mortality with annual scans. Based on your review, propose the best recommendation.

A) Recommendations from the national study should be followed.
B) Recommendations from the international study should be followed.
C) There is no rigorous research that can support a recommendation.
D) Recommendations should be stratified according to where the research was conducted.