In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Question: In what Georgia counties is the Chattahoochee-Oconee National Forest located? Passage:SR255 begins at an intersection with SR115 (Clarkesville Highway) east of Cleveland, in White County. The route heads northeast, and crosses over Blue Creek and travels through Batesville. Farther to the east, it passes New Blue Creek Cemetery and intersects SR384 (Duncan Bridge Road). It then crosses over Brasstown Creek shortly before it crosses over Chattahoochee River and enters Habersham County. Just after the county line, SR255 crosses over Amys Creek and meets SR17 (Unicoi Turnpike). The two highways share a concurrency, heading in a northwestern direction. During the concurrency, SR17/SR255 intersect SR255 Alt. (Ben T. Huiet Highway) and cross Maudlin Mill, Car, and Chickamauga Creeks before they reach Sautee Nacoochee. At Maudlin Mill Creek, they cross back into White County. There, SR255 splits to the north. Just prior to curving to the northeast, the route crosses over Ben Creek, and just after that curve, it crosses over Bean Creek and enters Chattahoochee-Oconee National Forest. Northeast of Bean Creek, SR255 intersects Sky Lake Road, which leads to Sky Lake. Just after Sky Lake Road, the highway has a second crossing over Chickamauga Creek. It heads to the east, and re-enters Habersham County, at the same time exiting the Chattahoochee-Oconee National Forest. A short while afterward, SR255 has a second intersection with SR255 Alt. Just northeast of that intersection, the route re-enters the ChattahoocheeOconee National Forest. The highway heads north-northeast to meet its northern terminus, an intersection with SR197 in Batesville. SR255 travels through the historic Sautee Valley Historic District.
b