On May $1,20$X$5,$ Altas Sdn Bhd $($Atlas$)$ mailed a written offer to Caltech Corporation Bhd $($Caltech$)$ for the sale of an office building. The offer included an express term that it would expire on June $30,20$X$5$ if the acceptance was not delivered into the hands of the offeror by the expiration date. On June $30,20$X$5$ at $8$:$00$ a$.$m$.,$ Caltech sent a written acceptance to Atlas via Caltech's personal messenger. However, the messenger was not able to deliver the acceptance until July $1,20x5.$ On July $2,20$X$5,$ Altas contacted Caltech, informing him that the acceptance had been delivered one day late. As a result, Altas refused to honour the acceptance. Which of the following is the most correct statement?

A$.$ There is no contract between Altas and Caltech. However, if Caltech would have mailed the acceptance on June $30,20x5,$ a contract would have been created.

B$.$ There is a contract between Altas and Caltech. The moment that Caltech gave the acceptance to the messenger, a contract was formed because acceptances are valid immediately upon dispatch.

C$.$ There is a contract between Altas and Caltech. The fact that the acceptance arrived only one day late is of no significance.

D$.$ There is no contract between Altas and Caltech.