Find the number of distinguishable permutations of the given letters "AABBCCCD".

mother A1 has daughter A2, and

mother B1 has daughter B2, and

mother C1 has daughter C2, and

mother D1 has daughter D2.

Step-by-step explanation:

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option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

the 3rd option is right

step-by-step explanation: