He smiled hugely , proud of himself for surprising Jack . He had n't liked lying to him on the phone , but he had been thinking for a week about surprising Jack and getting home a day early , and he had to admit that he was happy about being able to fool Jack and make him think he was coming on Thursday , when in reality he was flying in the day before , on Wednesday . What he had n't counted on was getting delayed in Chicago .

Question: What is the reason he would n't have counted on being delayed in Chicago ?
Answer: Delays are sometimes unforseeable and unplanned .None of the above choices .The Chicago airport almost never has any sort of delay .The delay was part of the surprise .