Your question is missing some key elements to be answered. I've found the complete question online. It is as follows:
Which choice most effectively maintains the stylistic pattern established earlier in the sentence?
According to the World Heritage Site, there are three things everyone must do when they visit the city of Prague in the Czech Republic: Walk along the Charles Bridge. See a production at the state opera house. Eating goulash is also an imperative.
NO CHANGE
Goulash and dumplings must also be eaten
Eat a meal of goulash and dumplings.
A meal of goulash and dumplings is essential.
Answer:
The best option is letter C) Eat a meal of goulash and dumplings.
Step-by-step explanation:
The question is asking us to maintain the stylistic pattern established in the sentence. In other words, we must observe if parallelism has been kept throughout. For a structure to present parallelism, it has to repeat a certain grammatical form inside the sentence.
Notice how the first two sentences after the colon have similar grammatical forms. They both begin with a verb in the imperative - walk and see. The last sentence, on the other hand, does not repeat that form and uses a verb with -ing instead - eating. Therefore, to maintain the pattern previously established, we must adapt the last sentence by using the verb in the imperative. The best option is, then, C) Eat a meal of goulash and dumplings.
... Walk along the Charles Bridge. See a production at the state opera house. Eat a meal of goulash and dumplings.