问题如下：
Which of the following characteristics is not typical for embryonic stage?
选项：
A.Slow growth.
B.High prices.
C.Limited competitive pressures.
解释：
C is correct.
A limited competitive pressure is a typical characteristic for the growth stage. Slow growth and high prices are two typical characteristics for embryonic stage.
老师，embryonic stage的competitive pressure是不是也是很小的？
