Filling return

Sir, my client died, he was a retired govt employee. Now his wife will get half pension i.e Rs. 9,000 /- Her husband filled his return in every year. Now his wife continue this. Then - 1). Where she will show pension income - in under salary or other sources. 2). Now can she will filled her return in her own name after registering PAN? 3). Can she get LIC deduction u/s 80c like her husband? Pls clarify