A project manager must compile a factory productivity for government. The report will be created by surveying general managers across 400 factories and must be completed in four mouths. However, based on the available resources and the time needed to survey each general manager, the project is expected to take one year.What tool or technique should the project manager use to meet the expected deadline? 项目经理必须为政府编制一份工厂生产能力报告。这份报告将通过对400家工厂的总经理进行调查而创建，并且必须在四个月内完成，然而，根据现有资源以及调查每位总经理所需的时间，该项目预计需要一年时间。项目经理应使用什么工具或技术来满足预期期限？ ◑A. Schedule compression进度压缩 ◑B.Fast tracking快速跟进 ◑C.Benchmarking标杆对照 ◑D.Statistical sampling统计抽样
