What is kaldor's technological theory?

Awork in three dimensions which has height, breadth and depth.

The caves at lascaux were closed in 1963 because a. vandals were destroying the paintings b. the collective breath of the many visitors caused the paintings to corrode c. the weather was destroying the paintings d. the government of france wanted scholars to be able to study the work without distraction

Some have called jazz music “america’s classical music.” what is meant by this statement? do you agree or disagree?