问题详情

What does "Dublin"s new pit is "showing promise"." mean in Paragraph 4？
A．The Dublin"s new pit presents the sign of incompetence as predicted.
B．The Dublin"s new pit adopted open-outcry trading as promised.
C．The Dublin"s new pit subjects to pressure from self-employed traders.
D．The Dublin"s new pit starts with a promising beginning.请帮忙给出正确答案和分析，谢谢！