A bride was left by her bridegroom on a freeway in East China's Jiangsu province after she answered the call of nature. The bride, surnamed Zhang, was engaged to Lin and they planned to hold a wedding on March 1, when Lin led a car team to pick up his bride. The bride and the bridegroom were in two different cars on the expressway when Zhang felt nature's call and she told her driver she could get in her husband's car later. But the careless bridegroom was busy paying a toll gate fee and forgot that his wife-to-be did not get into his car. The crying bride had to ask police for help and contacted her fiancé again.

Why was the bride left by her wedding motorcade?

A. She wanted to go to the toilet

B. She was answering a phone call

C. She was busy paying a toll gate fee

（中國日報網英語點津 許晶晶 編輯）