How were the japanese able to surprisehow were the japanese able to surprise the us at pearl harbor?

a. japanese land forces had invaded hawaii unnoticed.
b. japanese submarines invaded pearl harbor unnoticed.
c. apanese airplanes had flown to the us mainland unnoticed.
d. japanese aircraft carriers had approached hawaii unnoti the us at pearl harbor?

randy pausch was a famous mathematician, writer and lecturer who is particularly famous for his last speech, given in 2007, "the las lecture", because he illustrates why one's dreams need to be pursued in a logical order if success is to be obtained, option c. at this time, pausch had been diagnosed with terminal cancer so he told the audience to follow their childhood dreams, which were possible to achieve. it has been recognized as one of the best motivational speech around the world.

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