Concept:In Islam, the concluding act of the obligatory prayer (Salah) is the Taslim, which formally ends the prayer.
Explanation:Performers of Salah do not end with Bismillah (which opens actions) or Tahlil (a declaration of faith).
Tashahhud is a recited testimony while sitting, but it is not the final action.
The actual closing is Taslim, where one turns the head to the right and then to the left, saying "Assalamu alaikum wa rahmatullah" each time.
This phrase means "Peace be upon you and God's mercy."
Therefore, the completion of a full prayer is marked by Taslim.
Answer:A. Taslim