The correct options are A and C.
In mathematics, Pascal's triangle is a geometric representation of the binomial coefficients in the form of a triangle.
It is often named after the mathematician and physicist Blaise Pascal, but was known outside Europe long before Pascal's life.
Slightly simplified, each row is one element longer than the previous row and the value of each element is the sum of the elements above left and right (if these exist).
In this way, each row has a one at the beginning and end. The row and column counts both start at zero.
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