Name the next letter in this sequence: f m a m j j a s o n

Read this script. sean: [turning pages in an album] remember the old dock at grandma's? erin: [smiling] of course. i loved peering through the wooden slats and watching the minnows. sean: we used to walk down there in our pajamas to watch the sun rise. i remember our early morning breakfasts . . which line of dialogue best completes the script with a sentimental mood? erin: [agreeing] i have kept up the habit, and i always eat before 7: 00 a.m. erin: [nodding] grandma always joined us with her homemade biscuits. erin: [seriously] breakfast provides essential nutrients for good health. erin: [upset] i remember how scared i was when i accidentally fell off the dock.