Of the following, which is the safest sexual practice?
a. using the withdrawal method of birth control during intercourse
b. using condom for protection during intercourse
c. using emergency contraception three days after intercourse

The correct answer is b. Using a condom every time you engage in sexual activity is the safest sexual practice. The withdrawal method has a high rate of failure, and using emergency contraception three days after engaging in sexual activity is also much less effective.

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

Answer///blank (1) dea; ///drug enforcement agency;                                 blank(2) fda; // food and drug administration;