The pre-Islamic practice of shigār which was abolished by Islam meant
trade by barter
exchange of female slaves
exchange of sisters in wedlock
gambling
Correct answer is C
In pre-Islamic Arabia, a variety of different marriage practices existed. The most common and recognized types of marriage at this time consisted of: marriage by agreement, marriage by capture, marriage by mahr, marriage by inheritance and Mutah or temporary marriage.
Prior to Islam, in the Arab world, women could not make decisions based on their own beliefs and had little control over their marriages. They were never bound by contract for marriage or custody of children and their consent was never sought.