How old is Greg?

Choices:
A. 25
B. 35
C. not enough information
D. 15
not enough information
The bright Sunday morning sun illuminated the stained glass windows, diffusing multi-colored hues across the congregation. Attendance is up today, thought Greg. As the organist was nearing the end of the Prelude, he stepped up to the podium.
"Please take your hymnals and turn to page 23, and let's stand and sing 'Holy, Holy, Holy.'"
Holy, holy, holy! Lord God Almighty! Early in the morning, our song shall rise to Thee...
As Greg sang and conducted the 4/4 pattern, which he could do in his sleep, his mind began to wander. Shouldn't he feel guilty about what he was thinking last night while kissing Cynthia on the couch? His actions had been within the bounds of acceptable behavior. He had nothing to be ashamed of in that regard.
But what about his thoughts? It wasn't what he did with Cynthia--it was what he wanted to do. He didn't want to dishonor her or his commitment to God. But his feelings had been only natural. God created humans and gave them sexual desire. Wasn't it okay to want to have sex, as long as you didn't actually do it? Then he remembered the passage from Matthew 5:28.
But I say to you, that whosoever shall look on a woman to lust after her, hath already committed adultery with her in his heart.
At the end of the hymn, Greg stepped back and Dr. Huff went to the podium and said a prayer. Then there were announcements, two more hymns, and a chorus.
After the offering, it was time for the choir to sing their anthem. When Greg motioned to the choir to stand, Cynthia smiled at him from the Alto section. She was so incredibly beautiful. Standing there in her choir robe, she looked like a redheaded angel. If they could just get married, Greg could stop feeling guilty about his desire for her.