(单选题)1: It issued an import warning on Chinese frozen spinach using the ( ) of higher-than-required amounts of pesticide residue. 日本发出了针对中国冻菠菜的进口警告，借口是杀虫剂的残留物高于要求的标准。。

A: preface

B: pretext

C: prepare

D: prefere

正确答案:♦B♦