What is the answer please What is wrong with the word among in this sentence? Please can you answer this

Which of the fallowing is true about plays

Determining sentence type match each sentence with its type. i looked over my shoulder, because ! had an eerie feeling simple the child ran to greet the dog, and the teddy bear fell to the ground. compound-complex the leaf broke loose from the gnarled branch complex while the moon was full, the wolves howled and the dogs slept. compound

The development of new inventions in the field of space travel seemed rapid. how does the word rapid function in a sentence?