Parallel

Nothing. No change in current and voltage in other two resistors if all has equal resistance.

Re-draw the circuit with just two restsors, and do the calculations.

The equivalent resistance of ckt will increase. current distribution changes. Vtg remains same.

Agree resistance will increase, but question mentions no voltage or current.

k. but if the ckt is excited then......

.....then that is another question! As in the "Hitchhiker's Guide to the Universe" series of books, "come back in x thousand years.....".

Well that makes it two resistors in parallel instead.