Inward then upward, C! I know somebody already answered, but I'm just confirming that answer is correct as I took a class in this sort of stuff! :)
Real Estate! It is the safest investment. $10,000 can be a down payment on a small home depending on where the friend lives.
Tax deferred annuities or 401k plans through an employer are also safe investments. Any investment that has long term growth rather than risky stocks is a smart choice.
B. testes - the Sertoli cells of the Testes are where sperm mature and the Leydig cells of the Testes generate Testosterone
The vas deferens is a delivery tube connecting the testes to the prostate/urethra for export, and the penis is only a conduit to deliver the sperm inside semen during coitus.
The epididymis only stores mature sperm in preparation for the next ejaculation.
