In the given stress pattern, the asterisks () represent the stressed syllables, and the parentheses indicate the feet formed. Let's analyze each option:
Option (A): Stress assignment is from left to right, which is true. The stress pattern moves from left to right as we see in the sequence.
Option (B): There are extrametrical syllables, which is true. The syllable "gu" at the end is extrametrical, meaning it lies outside the last foot of the word.
Option (C): Feet are binary, which is true. The feet are formed with two syllables each, as seen in (ma.pi) and (le.se).
Option (D): The stress system is iambic, which is false. In an iambic system, the stress falls on the second syllable of the foot, but here the stress pattern is not consistent with iambic stress.
\[
\boxed{\text{The correct answers are (A), (B), and (C).}}
\]