Ah Seng, who owned a rare vintage car offered to sell it to his friend Ramu. The offer was made through a letter dated 1 May 2011, which was posted on the same day. The letter expressly stated that the offer was only open until 10 May 2011. Ramu received the letter on 5 May 2011 and immediately posted his letter of acceptance to Ah Seng. Due to a postal delay, this letter reached Ah Seng only on 12 May 2011. Meanwhile, on 11 May 2011, Ah Seng, not having heard from Ramu, sold the car to someone else.Required:Advise Ramu:

(b) whether he is likely to obtain the remedy of specific performance, in the event there was a breach of contract by Ah Seng. (5 marks)

右主支气管水平奇静脉直径正常为：

A．3mm～4mm

B．4mm～5mm

C．5mm～6mm

D．6mm～7mm

E．7mm～8mm