Assuming the underlined word is 'singing,' the correct answer is going to be A. participle.
A participle and a gerund look the same - they both end in -ing. However, participles are used as adjectives (as is the case here), whereas gerunds are used as nouns. Infinitives always have the same form, which is TO + verb.
Answer:
They commonly trapped fish such as salmon and herring. Salmon was able to be caught in abundance during the spawning season due to exhaustion caused by swimming upstream.
You looking for like a true or false answer? If so true.
Hope it helps
Answer:
D to locate valuable gold
