well this all my bodybuilding friend had to say
"Hi Kassia...you're really testing us this week...

hmmmmmmmmm...
well, some would say it takes a lot to lose muscle, but I say why
chance it...soooooooooooooooo, since you are in calorie deficit I
personally would lift to at least try to hold on to the muscle I
have...another thing is when bodybuilders (natural ones) get ready
for a contest they lift and do cardio...I can actually say this with
some experience...I did both for prep and I gained an extra 5 pounds
of muscle in a 16 week period...this was checked with both calipers
and underwater(the gold standard for body composition)...I did
cardio 6 days first thing upon waking and lifted later in the day
after work...sooooooooooo, I'd say it's a must to do both to get the
results you want in the shortest amount of time...hope that
helps...

"
and for the cardio comment, i know MOST(some are lucky not to have to any at all) body builders do low impact and nothing to high b/c they want to be in a fat burning stage and they only do about 20-30 mins. 4 days a week. if they go to high for to long to often they could start burning muscle which is the opposite they want to do.
as for weights i have always done them but recently started doing it for gaining size on upper body but i am still playing with this a bit.
kassia
When they discover the center of the universe, a lot of people will be
disappointed to discover they are not it -- Bernard Bailey