Because he needed to mention something about photosynthesis .None of the above choices .Because he likes her .Because he wanted to whisper something to her .
Why did he slide his arm around her ?
They leaned together as he looked over her shoulder at the page she was reading . He slide his arm around her , drawing her close as she leaned against him . He would whisper into her ear the answers to her questions ... " So photosynthesis has three cycles right ? " " No , just two . "