There are four trees—tamarind, coconut, mango and neem—each at a different corner of a rectangular plot. A well is located at one corner and a cabin at another adjacent corner. Tamarind and coconut trees are on either side of the gate which is located at the centre of the side opposite to the side at whose extremes the well and the cabin are located. Mango tree is not at the corner where the cabin is located.
Which of the following pairs can be diagonally opposite to each other in the plot?