Consider the following statements about the practice of Vedic sacrifices : 1. The shrauta (Vedic sacrifices) involved the use of three fires — the garhapatya (householder's fire), ahavaniya (offerandial fire) and dakshinagni (southern fire). 2. These fires were supposed to be placed in pits of different shapes, i.e., the garhapatya to be square, ahavaniya to be round and that of the dakshinagni, rectangle-shaped. Which of the statements given above is/are correct ?