How is spell resistance calculated for the Divine Soul feature of the Contemplative prestige class?
In the Contemplative's Class Features description (page 32, Complete Divine), it is written:
Divine Soul (Su): At 7th level, a contemplative gains spell resistance. Her spell resistance equals her class level + 15. In order to affect the contemplative with a spell, a spellcaster must roll the contemplative’s spell resistance or higher on 1d20 + the spellcaster’s level.
My question is about the classes involved in calculating spell resistance.
For example, does a Cleric 10, Contemplative 10 have spell resistance 35, or 25?