This passage is adapted from Marillyn Hewson, "No, Human Space Exploration is Not a Dead End".

Throughout the passage, the author's style of argument can best be described as
A
theoretical, as she relies more on general concepts than on specific examples.
B
personal, as she seems offended by David Von Drehle's criticisms of human space
exploration
с
methodical, as she addresses David Von Drehle's concerns one by one.
D
authoritative, as she addresses every objection one could possibly have to human space
exploration.