Which sentence does NOT correctly fix this run-on sentence? The car skidded luckily no one was near it.
a. The car skidded, but luckily no one was near it.
b. The car skidded; luckily, no one was near it.
c. The car skidded, luckily no one was near it.
d. The car skidded. Luckily, no one was near it.