for protection

[navi tasan]

1-They carry guns to protect themselves.
2-They carry guns for protection.
3-They carry guns for protecting themselves.

Are sentences 1-3 acceptable responses to the question: "Why do they carry guns?"?


4-They are armed to protect themselves.
5-They are armed for protection.
6-They are armed for protecting themselves.

Are sentences 4-6 acceptable responses to the question: "Why are they armed?"?

Gratefully,
Navi.

[bhaisahab]

1-They carry guns to protect themselves.
2-They carry guns for protection.
3-They carry guns for protecting themselves.

Are sentences 1-3 acceptable responses to the question: "Why do they carry guns?"?


4-They are armed to protect themselves.
5-They are armed for protection.
6-They are armed for protecting themselves.

Are sentences 4-6 acceptable responses to the question: "Why are they armed?"?

Gratefully,
Navi.

3 and 6 are not natural. The others are OK.