In a follow-up experiment, a charge of \(+40\) pC was placed at the center of an
artificial flower at the end of a 30-cm long stem. Bees were observed to
approach no closer than 15 cm from the center of this flower before they flew
away. This observation suggests that the smallest external electric field to
which bees may be sensitive is closest to which of these values? (a) \(2.4
\space N/C; (b) 16 \space N/C; (c) 2.7 \times 10^{-10} \space N/C; (d) 4.8
\times 10^{-10} \space N/C.\)
