sentence1: Among IRS -LRB- IT -RRB- and IRS -LRB- C & CE -RRB- which option is being given more preference these days ? Is there any particular reason ?
sentence2: Among IRS -LRB- IT -RRB- IRS -LRB- C & CE -RRB- , which option is being given more preference nowadays ? Is there any particular reason behind it ?