question: after sales:quality control
choices.label: A B C D
choices.text: data:science financing:venture capital keel:floor hearing:regulatory
explanation: "quality control" is an integral part of "after sale". "quality control" refers to the whole process from raw material control, production and processing, product manufacturing, finished product inspection, finished product storage, and "after sale" quality tracking and resolution. "after sale" is a link in "quality control" . "scientific" research requires the analysis and use of "data". "science" is not part of "data". "venture capital" is a form of "financing" that provides financial support to a start-up company and acquires shares in the company. "venture capital" is not a component of "financing". the "keel" can make the "floor" not easily deformed. the meaning of "keel" and my "floor" is not similar. the "floor" is not part of the "keel". "hearing" is part of "supervision".
relation: quality control after sales R2.3
relation: science data R3.10
relation: venture capital financing R3.10
relation: floor keel R3.10
relation: hearing regulatory R2.3