Both times , she declined , saying she was n't ready to plan that far ahead . Both times , she said she would call us when she knew what her schedule would be like . I know that Willem has had similar talks with her .

OPT: a. She never plans her life far in advance .; b. She never knows what to write in her schedule .; c. She memorized her schedule and forgot it .; d. She does not like to make any plans at all .;
Q: What may be the reason she did nt know what her schedule would be like
a.