Solution:Sentence A will be the starting line as it contains the main idea of the parajumble i.e. smoke pouring in through the seams of the ceiling. Sentence C states that the smoke began to fill the room so quickly that they could barely see. So, C will follow A.
However, Sentence B states that they all ran out into the front yard & Sentence E tells that by the time they made their way outside, the whole roof was engulfed in flames.
So, E will follow B. Further, Sentence D states that the narrator ran to the neighbors to call the fire department & Sentence F states that the narrator saw his/her mother run back into the house. So, F will follow D. Going through the options, option a has the correct sequence.