In heraldry what is a horizontal line dividing a shield called?

Question: The battle tanks designed and developed by the Defence Research and Development Organization in collaboration with Heavy Vehicles Factory and Bharat Heavy Electricals Limited are
[A].

Vijayanta

[B].

T-55 and T-72

[C].

Arjun

[D].

All of the above

Answer: Option C

Explanation:

No answer description available for this question.