Answer:
B
Explanation:
The component that Darwin proposed for development is normal choice. Since assets are constrained in nature, life forms with heritable characteristics that favor endurance and proliferation will in general leave more posterity than their friends, making the attributes increment in recurrence over ages.
D. when products generally become more expensive over time
<span>The "product line" rule must be used to find out the number of ways that two representatives can be picked so that one is a mathematics major and the other is a computer science major.
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The product line states that if the two functions f(x) and g(x) are differentiable (i.e. the derivative exist) then the product is differentiable and:
(fg)'=f'g+fg'
