C. run to
Feedback stand by - 1. to do nothing to help someone 2. to keep a promise 3. to be on somebody's side and support them 4. to be ready to do something.
make out - 1. to see/hear/understand 2. to pretend 3.succeed in something 4. to write check 5. to kiss someone passionately.
put back - 1. to postpone 2. to return something in the place where it had been before.
run to - 1. to reach a certain amount 2. to ask someone for help