Correct option is B
The correct indirect speech is (b).
Explanation: When converting from direct to indirect speech:
· The reporting verb asserted is in the past tense.
· The present tense verb “am” changes to past tense “was”.
· "I" changes to "she" (referring to the scientist).
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Rule: Simple present changes to simple past in indirect speech when the reporting verb is in the past.
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Example:
· Direct: He said, “I am ready.”
· Indirect: He said that he was ready.
· Option (b) follows the rule accurately.
Explain why other options are incorrect:
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(a): “Would be determined” indicates future possibility, which is not suitable.
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(c): “Had determined” implies a past completed action, which is incorrect.
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(d): "Is determined" (present tense) violates the rule of sequence of tenses.