Which of the following is not correct？______.

Asset securitization refers to the packaging and selling of loans and other assets backed by securities.
B. Asset securitization allows Flasset portfolios to become more liquid.
C. Asset securitization originated in the real estate and remains to be solely applied to mortgages.
D. Theoretically all assets and loans can be securitized, so long as it is profitable to do so or the benefits to the FI from securitization outweigh the costs of securitization.