Five girls are sitting in a row. Rashi is not adjacent to Sulekha or Abha. Anuradha is not adhacent to Sulekha. Rashi is adjacent to Monika. Monika is at the middle in the row. Then, Anuradha is adjacent to whom out of the following ?
Choose the correct alternative from the following : - Assertion (A) : Graphite is slippery and used as a lubricant. Reason (R): Graphite has free electrons.