2. þ A. The SUBSTR function extracts a four-character substring from the given
input string starting with and including the fifth character. The characters at
positions 1 to 4 are “How_”. Starting with the character at position 5, the next
four characters form the word “long”.
ý B, C, and D. B is a five-character substring beginning at position 4, while
“ring?”, which is also five characters long, starts five characters from the end
of the given string.
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