Which configuration shows a pool-based source NAT without PAT?

A.
[edit security nat source]
user@host# show
pool A {
address {
207.17.137.1/32 to 207.17.137.254/32;
}
}
rule-set 1A {
from zone trust;
to zone untrust;
rule 1 {
match {
source-address 10.1.10.0/24;
}
then {
source-nat pool A;
port no-translation;
}
}
}

B.
[edit security nat source]
user@host# show
pool A {
address {
207.17.137.1/32 to 207.17.137.254/32;
}
overflow-pool interface;
}
rule-set 1A {
from zone trust;
to zone untrust;
rule 1 {
match {
source-address 10.1.10.0/24;
}
then {
source-nat pool A;
port no-translation;

}
}
}

C.
[edit security nat source]
user@host# show
pool A {
address {
207.17.137.1/32 to 207.17.137.254/32;
}
port no-translation;
}
rule-set 1A {
from zone trust;
to zone untrust;
rule 1 {
match {
source-address 10.1.10.0/24;
}
then {
source-nat pool A;
}
}
}

D.
[edit security nat source].
user@host# show
pool A {
address {
207.17.137.1/32 to 207.17.137.254/32;
}
overflow-pool interface;
}
rule-set 1A
{
from zone trust;
to zone untrust;
rule 1 {
match {
source-address 10.1.10.0/24;
}
then {
source-nat pool A;
}
}
}