Several ways you can determine the validity is
1.) The author and his credentials.
2.) Sources that back up the article/publication.
3.) Whether the article features bias or none, when appropriate.
The right answer for the question that is being asked and shown above is that: "c. The novels and short stories written by explorers were too difficult to preserve and have been lost." the literature of exploration filled with so many journals, letters, and other nonfiction sources because <span>c. The novels and short stories written by explorers were too difficult to preserve and have been lost.</span>
A is the correct answer, because it is grammatically correct and the noun/verb agrees.

<h2>The 3 sentences are:-</h2>
- In the evenings, She sits on the front porch to admire her immaculate lawn.
- Flipped on its back, the beetle that Clara soaked with insecticide dies under the refrigerator.
- He's been singing all day.

Explanation:
There are many kinds of birds in our district. the birds that are commonly found in our district are the robin, blackbird, thrush, wren, swallow, lark, corncrake, cuckoo, crow, and magpie.
The swallow, corncrake, and the cuckoo come to Ireland for the Summer, and they go away to warmer countries when it begins (to get) cold here.
The robin mostly builds its next in a hole of a ditch, with twigs, and moss, and lines it inside with hair. She lays six eggs and hatches them until young birds come out. The colour of the eggs is white with red spots.
The blackbird builds her next between roots of bushes, and lays four eggs. She hatches them for three weeks
<h2>THANK YOU FOLLOW ME! </h2>