OG详解-OG6 文法 Q3

Choice D is the best answer. The convention being tested is subject-verb agreement. The singular verb “creates” agrees in number with the singular subject “technique.”
Choice A is incorrect because the plural verb “create” doesn’t agree in number with the singular subject “technique.” Choice B is incorrect because the plural verb “are creating” doesn’t agree in number with the singular subject “technique.” Choice C is incorrect because the plural verb “have created” doesn’t agree in number with the singular subject “technique.”