Answer:
Sequence is the correct option.
Explanation:
In this sentence, the verb (walk) does not indicate time; there are no adverbs to indicate how the action was done, which could indicate time. There are no adjectives or other words that could indicate it. The sentence lacks description of condition or state because it does not mention how the forest or the characters are, or why the speaker and others are looking for the tree kangaroos. No state can be inferred from the statement. Letter B, sequence, is correct because it mentions one action (walk through the forest) causing (or caused by) another action, in this given example, the fact of searching tree kangaroos.