Which prefix-list expression matches all IPv4 prefixes with lengths from /1 through /16?

The correct option, 0.0.0.0/0 le 16, matches all IPv4 prefixes from /1 to /16. The 0.0.0.0/0 part specifies a wildcard match for any IPv4 address. The le 16 (less than or equal to 16) condition then filters these matches to include only prefixes with lengths from /0 up to /16. Since the question asks for lengths from /1 through /16, this expression correctly encompasses that range. 0.0.0.0/1 le 16 is incorrect because it starts matching from a /1 prefix, excluding the /0 prefix which is implicitly included when matching "all IPv4 prefixes." 0.0.0.0/0 ge 1 is incorrect because ge 1 (greater than or equal to 1) does not set an upper bound, meaning it would match prefixes up to /32. 0.0.0.0/16 ge 1 is incorrect because it specifies a starting prefix length of /16, which would not match prefixes like /1 through /15.