Which sentence contains a mechanical error?

the class opened its writers inc books to the chapter titled "writing basic essays."
we were supposed leave friday for our trip to puerto vallarta, mexico, but we had to cancel.
her birth records indicate she was born on november sixteenth, 1961.
callie's piano lesson is at 4: 00 p. m. every monday and wednesday.

What influenced robert louis stevenson's writingstyle?

While looking at ads on a professional job site, justin saw this job posting: "the employee should have a degree in human behavior and at least 5 years experience in behavioral modifications. we are also looking for an employee who is good at crisis divergence. typically employees will spend a lot of time supporting others."

Javier is writing a literary analysis of the secret garden. read this introduction to his essay. frances burnett’s “the secret garden” explores the challenges of a sickly, self-centered little girl named mary lennox. after mary’s parents die of cholera, she moves from india to england to live at her uncle’s estate in yorkshire. while living at the old estate, mary discovers an abandoned garden that belonged to her deceased aunt. tending to the neglected garden brings mary joy, and her health improves. through mary’s transformation, burnett presents nature as a symbol of rebirth and healing. which piece of textual evidence should javier use to support the claim made in the introduction? a. “‘it’s in the garden no one can go into,’ she said to herself. ‘it’s the garden without a door. he lives in there. how i wish i could see what it is like! ’” b. “in india she had always felt hot and too languid to care much about anything. the fact was that the fresh wind from the moor had begun to blow the cobwebs out of her young brain and to waken her up a little.” c. “mary felt lonelier than ever when she knew she was no longer in the house. she went out into the garden as quickly as possible, and the first thing she did was to run round and round the fountain flower garden ten times.” d. “‘it isn’t a quite dead garden,’ she cried out softly to herself. ‘even if the roses are dead, there are other things alive.’”