Directions: In the following question, four statements are provided between an opening statement 1 and a closing statement 6. The four statements are jumbled up and form a coherent paragraph when properly arranged. Select the alternative representing the proper and logical sequencing of these six taken together.

(1) There are some obvious ways that odours affect what we do and how we feel. (A) And the smell of baking breads can make our mouths water in anticipation. (B) The stink of rotten eggs makes us flinch. (C) While the aroma of a pine forest is pleasing. (D) Yet odours have a subtle influence on human behaviour. (6) It is known that smell plays a role in sexual altercation in animals.