Alonzo Offered to Sell to Bernardo a Parcel of Land

Alonzo offered to sell to Bernardo a parcel of land at a specified price. Alonzo gave Bernardo (60) days within which to accept the offer. Bernardo agreed to the period.

A) Before the lapse of sixty days, Alonzo may withdraw the offer or increase the price.
B) Before the lapse of sixty days no withdrawal can be made but the price may be increased.
C) No withdrawal can be made before sixty days because the period is binding.
D) No withdrawal can be made because there is already a perfected option contract.