A26075. 在处理日志文件时，需要把日志的行顺序反转，方便查看最新的日志记录（即文件里的内容按行倒序）。下面哪个代码能正确实现？（ ）

with open('old_file.txt', 'r') as f1, open('new_file.txt', 'w') as f2:
	lines = f1.readlines()
	lines.reverse()
	f2.write(lines)

with open('old_file.txt', 'r') as f1, open('new_file.txt', 'w') as f2:
	lines = f1.read()
	lines.reverse()
	f2.write(lines)

with open('old_file.txt', 'r') as f1, open('new_file.txt', 'w') as f2:
	lines = f1.readlines()
	for line in reversed(lines):
		f2.write(line)

with open('old_file.txt', 'r') as f1, open('new_file.txt', 'w') as f2:
	lines = f1.read()
	for line in reversed(lines):
		f2.write(line)