长难句结构分析 — 英语选择题
题目
分析下列长难句的结构：The researcher whose findings, which had been questioned by reviewers unfamiliar with the region, later proved accurate was invited to lead the project. 其中 was invited 的主语对应的核心名词是（ ）
A. reviewers
B. findings
C. region
D. The researcher