C and B. A past tense refers to the past. Crawls is currently doing, was crawling could be either present or past, so if you have a multiple choice that would be one of them. C is crawled, meaning he was. And D is will crawl, meaning the future.
I can try,
But what's the question?
Chinua Achebe was a Nigerian novelist. He had a title of chieftain of Igbo tribe and wrote novels about its customs. That was portrayed as sophisticated, passed down through generations.
Westerners may mistaken them as ‘primitive and savage’. But Achebe showed Igbo people's rich cultural background through his narrations. Igbo proverbs, ‘the art of conversation", were frequently quoted in his novels.
The non-violent nature of Igbo was demonstrated by events like the peaceful agreement with the Mbaino tribe during a murder in Igbo by a Mbaino man.
The correct answer to this question is:
"Relative abundance is a comparison between the isotopes and Percent abundance is a comparing the totals." Relative<span> species </span>abundances tend to conform to specific patterns. Percent abundance <span> can be calculated by finding the percentage of an isotope compared to another isotope of an element using its relative atomic mass.</span>