Answer:
d) were
Explanation:
plz mark as brainliest
hope it helps
The telephone and light bulb "were" invented in the nineteenth century.
"Invented means to invent something that did not exist.
Because the telephone and light bulb "were" invented in the nineteenth century in the given sentence, the word "were" is used when the sentence is in plural and past tense. the telephone and light bulb "were" invented in the nineteenth century.
Hence the correct option is, D. "were"
To know more about invented:
https://brainly.com/question/23538626
#SPJ2
