Which sentence is punctuated incorrectly?
a. he explained the principle of internal-combustion (although not very well)
b. john lennon (1940-1980) was a founding member of the beatles.
c. the latin expression "per se" ("in itself") has found wide use in legal circles.
d. fredrick (not known as "tex") was becoming a well-known animator.

Option A. He explained the principle of internal-combustion (although not very well)

Explanation:

Option A is missing a period at the end of the sentence.

Periods are used at the end of any sentence that is intended to make a statement. The period should be placed directly behind the last letter of the last word of the sentence.

In this case, after finishing a sentence with parenthesis, a period should be set after the parenthesis, not after the last word inside it.

"... (although not very well)."

the reason that neiterkob's daughter most likely tell the beginnings of the maasai is : to explain the readers the origin of maasai culture

with this explanation, the reader will grasp a better concept about it and not lost in the middle of reading.

                                            (hope this )

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