This question checks who among a group of well known Indian figures received a specific Oxford honour in 2019. Raghuram Rajan, Manmohan Singh and Shashi Tharoor are all respected in their own fields, economics, public service and literature, but none of them was given the Bodley Medal that year, so all three fail together.
The medal, awarded by Oxford's Bodleian Libraries for outstanding contribution to literature, culture or science, went to Amartya Sen in 2019, recognising his lifetime of work on welfare economics and famine studies.
So the correct answer is Amartya Sen.
Look at what actually connects these four names before picking an answer. Raghuram Rajan, Manmohan Singh and Amartya Sen all have backgrounds in economics, while Shashi Tharoor's is literature and diplomacy, so this cannot be settled purely by field.
Once the shared economics background is set aside as a coincidence rather than a clue, Sen's distinct Nobel winning research record is what actually earned him the medal.
Therefore, the correct answer is Amartya Sen.