I am having trouble getting from the last step to the answer, this is highlighted in red.
Thanks
You may use the result of the exponential expectation below
$$E[e^{B_t}]=e^{\frac t2}$$
to get
$$E[e^{{B_1}+2}]=e^{\frac 52}$$
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You may use the result of the exponential expectation below
$$E[e^{B_t}]=e^{\frac t2}$$
to get
$$E[e^{{B_1}+2}]=e^{\frac 52}$$