Which best compares the structure of silent spring and "save the redwoods"?

silent spring starts with a positive picture and ends with a negative picture, while “save the redwoods” starts with a negative picture and ends with a positive picture.
silent spring starts with general statements and ends with specific statements, while “save the redwoods” starts with specific statements and ends with general statements.
silent spring starts by appealing to readers’ emotions and ends by appealing to readers’ logic, while “save the redwoods” starts by appealing to readers’ emotions and ends by establishing the author’s credibility.
silent spring starts with a negative tone and ends with a positive tone, while “save the redwoods” starts with a positive tone and ends with a positive tone.

[1] nothing that comes from the desert expresses its extremes better than the unhappy growth of the tree yuccas. tormented, thin forests of it stalk drearily in the high mesas, particularly in that triangular slip that fans out eastward from the meeting of the sierras and coastwise hills. the yucca bristles with bayonet-pointed leaves, dull green, growing shaggy with age like an old [5] man's tangled gray beard, tipped with panicles of foul, greenish blooms. after its death, which is slow, the ghostly hollow network of its woody skeleton, with hardly power to rot, makes even the moonlight fearful. but it isn't always this way. before the yucca has come to flower, while yet its bloom is a luxurious, creamy, cone-shaped bud of the size of a small cabbage, full of sugary sap. the indians twist it deftly out of its fence of daggers and roast the prize for their [10] own delectation why does the author use the words "bayonet-pointed" (line 4) and "fence of daggers" (line 9) to describe the leaves of the yucca tree? . to create an image of the sharp edges of the plant to emphasize how beautiful the plant's leaves are to explain when and where the plant grows to show how afraid the author is of the plant