Which sentence uses correlative conjunctions correctly?
a. president walters wants both to reduce costs, and productivity should also be increased.
b. president walters wants both to reduce costs and to increase productivity.

President Walters wants both to reduce costs and to increase productivity is the correct answer.

Explanation:

Correlative conjunctions are parts of the sentence that connect clauses, words, or phrases. They also work in pairs so both words can balance the parts of speech. Some examples are both/and; just as/so; not only/but also, among many others. Also, it is necessary to use correct grammar with them. Since they work as a semi-colon, it is not correct to write a coma before the second word (and, paired with both, in the sentence). As we can see, in the first option we have a coma before the second clause starts, making it an incorrect option.

i think its a.

an ugly duckling is teased by the other ducklings. when she grows up, however, the ducklings discover that she is a beautiful swan