Proctor and Gamble P&G) Desires to Learn Why Consumers Purchase

Proctor and Gamble P&G) desires to learn why consumers purchase one of its product lines.The company hires the research firm of Veekay and Co.to conduct a study.Veekay and Co.send a mail questionnaire to P&G 's customers to investigate relationships.The data collected are

A) primary, causal, cross-sectional and overt
B) commercial, non-causal, longitudinal and non-overt
C) commercial, non-causal, time-series and overt
D) commercial, non-causal, cross sectional and overt