What was the main reason of the olive branch petition?

the olive branch petition stated that the colonies would not give in to britain's demands.
the olive branch petition begged parliament to wait for an understanding to be achieved before acting on the colonists resistance.
the olive branch petition asked for foreign assistance in the colonies against britain.
the olive branch petition was a declaration of war against britain.

"but let us admit texas, and we shall place the balance of power in the hands of the texans themselves. they, with the southern states, will control the policy and the destiny of this nation; our tariff will then be held at the will of the texan advocates of free trade. are our friends of the north prepared to deliver over this great national policy to the people of texas? " - rep. joshua giddings, ohio, may 21, 1844 this quote points to what major issue in the years leading up to the civil war?