< b="" /> Explanation: < />
The correct answer is option 'B' - Cross the river.

< b="" /> Explanation: < />
To understand why the correct answer is option 'B', let's analyze the given options and their meanings:

a) Bath in the river: This option suggests that the individuals want to take a bath in the river. However, there is no information provided in the question to support this choice. Therefore, we can eliminate option 'A'.

b) Cross the river: This option implies that the individuals want to move from one side of the river to the other. Crossing a river usually involves getting to the opposite bank or reaching a specific destination on the other side. This is a common goal when encountering a river obstacle. Since this option aligns with the general purpose of crossing a river, it is a valid choice.

c) Both: This option implies that the individuals want to both bathe in the river and cross it. However, there is no evidence or context provided in the question that supports this possibility. Without any further information, it is safer to assume that the individuals have a single objective rather than multiple ones. Hence, we can exclude option 'C'.

d) None of these: This option suggests that neither bathing in the river nor crossing it is the objective. However, the given question explicitly states that the individuals "want to do" something, which implies that they have a specific intention. Therefore, we can eliminate option 'D'.

Based on the analysis above, the correct answer is option 'B' - Cross the river.