This can be answered better using process of elimination.
B, C, and D actually weekens the plan. Opinion E is garbage and irrelevant.
Conclusion: Introduce TV in the field in a hope that it will kill the whiteflies before they can cause further damage.
B: If TV stays dormant and takes times to grow, by the time it kills the flies, it will be too late. Hence weakens the plan. ELIMINATE!
C: if the parasite spread faster than TV, it will be not be able to save the crops in time. Hence weakens.
...
B, C, and D actually weekens the plan. Opinion E is garbage and irrelevant.
Conclusion: Introduce TV in the field in a hope that it will kill the whiteflies before they can cause further damage.
B: If TV stays dormant and takes times to grow, by the time it kills the flies, it will be too late. Hence weakens the plan. ELIMINATE!
C: if the parasite spread faster than TV, it will be not be able to save the crops in time. Hence weakens.
...





