need some help please!

[vwbeetle]

1. my wife got ilr in november 2012 after 2years as spouse of sattled person, she first came in to the uk in march 2003 as a visitor and then we register our marriage in may 2003 here in UK. after that got my wife visa change as my spouse in country august 2003. I got my BC after 10years student + 1year ILR in feb 2013

first question:
when my wife can apply for BC, is she needs to wait whole 12 months or not?
second question:
what ans I need to write in In Section 2: Residence requirements
Q .2.1 date and place of first arrival in the United Kingdom.

Ans: 1 . March 2003 she came on visitor visa or
Ans: 2 . in august 2003 when she got spouse visa change in uk
Thanks & Regards